1
|
Gharsallah H, Jeddi M, Bejar M, Dhahri E, Nouari S. Study of the correlation between the magnetic and electrical properties of the La 0.6Sr 0.4MnO 3 compound. RSC Adv 2024; 14:21692-21705. [PMID: 38979444 PMCID: PMC11229085 DOI: 10.1039/d4ra03528c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 06/25/2024] [Indexed: 07/10/2024] Open
Abstract
In this work, we investigated the relationship between the electrical and magnetic properties of the superparamagnetic (SPM) La0.6Sr0.4MnO3 (S1C0) compound prepared by the sol-gel method. The (S1C0) sample displayed a ferromagnetic metallic (FMM) behavior at low temperatures and a paramagnetic semiconductor (PMSC) behavior at high temperatures. The FMM behavior was described by the Zener Double Exchange (ZDE) polynomial law containing the contributions of the electron-electron (e-e) interactions and the electron-magnon (e-m) scattering. The PMSC behavior was described by the Mott Variable Range Hopping (Mott-VRH) transport model. The semiconductor/metallic transition temperature has been approximated at the blocking temperature. The Thermal Coefficient of Resistivity (TCR), which exhibits a linear variation around ambient temperature, can be used as a calibration curve for thermometry. Thus, our sample can be considered as a good candidate for the detection of infrared radiation used in night vision bolometer technologies.
Collapse
Affiliation(s)
- H Gharsallah
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax B. P. 1171 3000 Sfax Tunisia +216 74 676 609 +216 98 333 873
- Institut Préparatoire aux Études d'Ingénieur de Sfax, Université de Sfax BP 1172 3018 Sfax Tunisia
| | - M Jeddi
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax B. P. 1171 3000 Sfax Tunisia +216 74 676 609 +216 98 333 873
| | - M Bejar
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax B. P. 1171 3000 Sfax Tunisia +216 74 676 609 +216 98 333 873
- Faculté des Sciences de Monastir, Université de Monastir Avenue de l'environnement 5019 Monastir Tunisia
| | - E Dhahri
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax B. P. 1171 3000 Sfax Tunisia +216 74 676 609 +216 98 333 873
| | - S Nouari
- Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia
| |
Collapse
|
2
|
Zhang X, Li Y, Lu Q, Xiang X, Sun X, Tang C, Mahdi M, Conner C, Cook J, Xiong Y, Inman J, Jin W, Liu C, Cai P, Santos EJG, Phatak C, Zhang W, Gao N, Niu W, Bian G, Li P, Yu D, Long S. Epitaxial Growth of Large-Scale 2D CrTe 2 Films on Amorphous Silicon Wafers With Low Thermal Budget. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311591. [PMID: 38426690 DOI: 10.1002/adma.202311591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/27/2024] [Indexed: 03/02/2024]
Abstract
2D van der Waals (vdW) magnets open landmark horizons in the development of innovative spintronic device architectures. However, their fabrication with large scale poses challenges due to high synthesis temperatures (>500 °C) and difficulties in integrating them with standard complementary metal-oxide semiconductor (CMOS) technology on amorphous substrates such as silicon oxide (SiO2) and silicon nitride (SiNx). Here, a seeded growth technique for crystallizing CrTe2 films on amorphous SiNx/Si and SiO2/Si substrates with a low thermal budget is presented. This fabrication process optimizes large-scale, granular atomic layers on amorphous substrates, yielding a substantial coercivity of 11.5 kilo-oersted, attributed to weak intergranular exchange coupling. Field-driven Néel-type stripe domain dynamics explain the amplified coercivity. Moreover, the granular CrTe2 devices on Si wafers display significantly enhanced magnetoresistance, more than doubling that of single-crystalline counterparts. Current-assisted magnetization switching, enabled by a substantial spin-orbit torque with a large spin Hall angle (85) and spin Hall conductivity (1.02 × 107 ℏ/2e Ω⁻¹ m⁻¹), is also demonstrated. These observations underscore the proficiency in manipulating crystallinity within integrated 2D magnetic films on Si wafers, paving the way for large-scale batch manufacturing of practical magnetoelectronic and spintronic devices, heralding a new era of technological innovation.
Collapse
Affiliation(s)
- Xiaoqian Zhang
- Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing, 211189, China
| | - Yue Li
- Materials Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Qiangsheng Lu
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65211, USA
- Material Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Xueqiang Xiang
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaozhen Sun
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Chunli Tang
- Department of Electrical and Computer Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Muntasir Mahdi
- Department of Electrical and Computer Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Clayton Conner
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65211, USA
| | - Jacob Cook
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65211, USA
| | - Yuzan Xiong
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jerad Inman
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Physics, Oakland University, Rochester, MI, 48309, USA
| | - Wencan Jin
- Department of Electrical and Computer Engineering, Auburn University, Auburn, AL, 36849, USA
- Department of Physics, Auburn University, Auburn, AL, 36849, USA
| | - Chang Liu
- Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
| | - PeiYu Cai
- Institute for Condensed Matter Physics and Complex Systems, School of Physics and Astronomy, The University of Edinburgh, Edinburgh, EH9 3FD, UK
| | - Elton J G Santos
- Institute for Condensed Matter Physics and Complex Systems, School of Physics and Astronomy, The University of Edinburgh, Edinburgh, EH9 3FD, UK
- Higgs Centre for Theoretical Physics, The University of Edinburgh, Edinburgh, EH9 3FD, UK
- Donostia International Physics Center (DIPC), Donostia-San Sebastián, 20018, Basque Country, Spain
| | - Charudatta Phatak
- Materials Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Wei Zhang
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Physics, Oakland University, Rochester, MI, 48309, USA
| | - Nan Gao
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Wei Niu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Guang Bian
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65211, USA
| | - Peng Li
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Dapeng Yu
- Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Shibing Long
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| |
Collapse
|
3
|
Zhang J, Liu Z, Ye X, Wang X, Lu D, Zhao H, Pi M, Chen CT, Chen JL, Kuo CY, Hu Z, Yu X, Zhang X, Pan Z, Long Y. High-Pressure Synthesis of Quadruple Perovskite Oxide CaCu 3Cr 2Re 2O 12 with a High Ferrimagnetic Curie Temperature. Inorg Chem 2024; 63:3499-3505. [PMID: 38320745 DOI: 10.1021/acs.inorgchem.3c04243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
An AA'3B2B'2O12-type quadruple perovskite oxide of CaCu3Cr2Re2O12 was synthesized at 18 GPa and 1373 K. Both an A- and B-site ordered quadruple perovskite crystal structure was observed, with the space group Pn-3. The valence states are verified to be CaCu32+Cr23+Re25+O12 by bond valence sum calculations and synchrotron X-ray absorption spectroscopy. The spin interaction among Cu2+, Cr3+, and Re5+ generates a ferrimagnetic transition with the Curie temperature (TC) at about 360 K. Moreover, electric transport properties and specific heat data suggest the presence of a half-metallic feature for this compound. The present study provides a promising quadruple perovskite oxide with above-room-temperature ferrimagnetism and possible half-metallic properties, which shows potential in the usage of spintronic devices.
Collapse
Affiliation(s)
- Jie Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhehong Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xubin Ye
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiao Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Dabiao Lu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haoting Zhao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maocai Pi
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chien-Te Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Jeng-Lung Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Chang-Yang Kuo
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - Xiaohui Yu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xueqiang Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhao Pan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Youwen Long
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Songshan Lake Materials Laboratory, Dongguan 523808, Guangdong, China
| |
Collapse
|
4
|
Žurauskienė N, Rudokas V, Tolvaišienė S. Magnetoresistance and Magnetic Relaxation of La-Sr-Mn-O Films Grown on Si/SiO 2 Substrate by Pulsed Injection MOCVD. SENSORS (BASEL, SWITZERLAND) 2023; 23:5365. [PMID: 37420532 DOI: 10.3390/s23125365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/24/2023] [Accepted: 06/04/2023] [Indexed: 07/09/2023]
Abstract
The results of magnetoresistance (MR) and resistance relaxation of nanostructured La1-xSrxMnyO3 (LSMO) films with different film thicknesses (60-480 nm) grown on Si/SiO2 substrate by the pulsed-injection MOCVD technique are presented and compared with the reference manganite LSMO/Al2O3 films of the same thickness. The MR was investigated in permanent (up to 0.7 T) and pulsed (up to 10 T) magnetic fields in the temperature range of 80-300 K, and the resistance-relaxation processes were studied after the switch-off of the magnetic pulse with an amplitude of 10 T and a duration of 200 μs. It was found that the high-field MR values were comparable for all investigated films (~-40% at 10 T), whereas the memory effects differed depending on the film thickness and substrate used for the deposition. It was demonstrated that resistance relaxation to the initial state after removal of the magnetic field occurred in two time scales: fast' (~300 μs) and slow (longer than 10 ms). The observed fast relaxation process was analyzed using the Kolmogorov-Avrami-Fatuzzo model, taking into account the reorientation of magnetic domains into their equilibrium state. The smallest remnant resistivity values were found for the LSMO films grown on SiO2/Si substrate in comparison to the LSMO/Al2O3 films. The testing of the LSMO/SiO2/Si-based magnetic sensors in an alternating magnetic field with a half-period of 22 μs demonstrated that these films could be used for the development of fast magnetic sensors operating at room temperature. For operation at cryogenic temperature, the LSMO/SiO2/Si films could be employed only for single-pulse measurements due to magnetic-memory effects.
Collapse
Affiliation(s)
- Nerija Žurauskienė
- Department of Functional Materials and Electronics, Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
- Faculty of Electronics, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania
| | - Vakaris Rudokas
- Department of Functional Materials and Electronics, Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania
| | - Sonata Tolvaišienė
- Faculty of Electronics, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania
| |
Collapse
|
5
|
Žurauskienė N. Engineering of Advanced Materials for High Magnetic Field Sensing: A Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:2939. [PMID: 36991646 PMCID: PMC10059877 DOI: 10.3390/s23062939] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/04/2023] [Accepted: 03/05/2023] [Indexed: 06/19/2023]
Abstract
Advanced scientific and industrial equipment requires magnetic field sensors with decreased dimensions while keeping high sensitivity in a wide range of magnetic fields and temperatures. However, there is a lack of commercial sensors for measurements of high magnetic fields, from ∼1 T up to megagauss. Therefore, the search for advanced materials and the engineering of nanostructures exhibiting extraordinary properties or new phenomena for high magnetic field sensing applications is of great importance. The main focus of this review is the investigation of thin films, nanostructures and two-dimensional (2D) materials exhibiting non-saturating magnetoresistance up to high magnetic fields. Results of the review showed how tuning of the nanostructure and chemical composition of thin polycrystalline ferromagnetic oxide films (manganites) can result in a remarkable colossal magnetoresistance up to megagauss. Moreover, by introducing some structural disorder in different classes of materials, such as non-stoichiometric silver chalcogenides, narrow band gap semiconductors, and 2D materials such as graphene and transition metal dichalcogenides, the possibility to increase the linear magnetoresistive response range up to very strong magnetic fields (50 T and more) and over a large range of temperatures was demonstrated. Approaches for the tailoring of the magnetoresistive properties of these materials and nanostructures for high magnetic field sensor applications were discussed and future perspectives were outlined.
Collapse
Affiliation(s)
- Nerija Žurauskienė
- Department of Functional Materials and Electronics, Center for Physical Sciences and Technology, Sauletekio Ave. 3, 10257 Vilnius, Lithuania;
- Faculty of Electronics, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
| |
Collapse
|
6
|
Guo S, Wang B, Wolf D, Lubk A, Xia W, Wang M, Xiao Y, Cui J, Pravarthana D, Dou Z, Leistner K, Li RW, Hühne R, Nielsch K. Hierarchically Engineered Manganite Thin Films with a Wide-Temperature-Range Colossal Magnetoresistance Response. ACS NANO 2023; 17:2517-2528. [PMID: 36651833 DOI: 10.1021/acsnano.2c10200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Colossal magnetoresistance is of great fundamental and technological significance in condensed-matter physics, magnetic memory, and sensing technologies. However, its relatively narrow working temperature window is still a severe obstacle for potential applications due to the nature of the material-inherent phase transition. Here, we realized hierarchical La0.7Sr0.3MnO3 thin films with well-defined (001) and (221) crystallographic orientations by combining substrate modification with conventional thin-film deposition. Microscopic investigations into its magnetic transition through electron holography reveal that the hierarchical microstructure significantly broadens the temperature range of the ferromagnetic-paramagnetic transition, which further widens the response temperature range of the macroscopic colossal magnetoresistance under the scheme of the double-exchange mechanism. Therefore, this work puts forward a method to alter the magnetic transition and thus to extend the magnetoresistance working window by nanoengineering, which might be a promising approach also for other phase-transition-related effects in functional oxides.
Collapse
Affiliation(s)
- Shanshan Guo
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- Leibniz IFW Dresden, Dresden 01069, Germany
| | - Baomin Wang
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
- School of Physical Science and Technology, Ningbo University, Ningbo 315201, People's Republic of China
| | | | - Axel Lubk
- Leibniz IFW Dresden, Dresden 01069, Germany
- Institute of Solid State and Materials Physics, TU Dresden, Dresden 01069, Germany
| | - Weixing Xia
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | - Mingkun Wang
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | - Yao Xiao
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | - Junfeng Cui
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | - Dhanapal Pravarthana
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | - Zehua Dou
- Leibniz IFW Dresden, Dresden 01069, Germany
| | - Karin Leistner
- Leibniz IFW Dresden, Dresden 01069, Germany
- Electrochemical Sensors and Energy Storage, Faculty of Natural Sciences, Institute of Chemistry, TU Chemnitz, Chemnitz 09111, Germany
| | - Run-Wei Li
- CAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People's Republic of China
| | | | | |
Collapse
|
7
|
Zurauskiene N, Stankevic V, Kersulis S, Vagner M, Plausinaitiene V, Dobilas J, Vasiliauskas R, Skapas M, Koliada M, Pietosa J, Wisniewski A. Enhancement of Room-Temperature Low-Field Magnetoresistance in Nanostructured Lanthanum Manganite Films for Magnetic Sensor Applications. SENSORS (BASEL, SWITZERLAND) 2022; 22:4004. [PMID: 35684630 PMCID: PMC9185414 DOI: 10.3390/s22114004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 01/25/2023]
Abstract
The results of colossal magnetoresistance (CMR) properties of La1-xSrxMnyO3 (LSMO) films grown by the pulsed injection MOCVD technique onto an Al2O3 substrate are presented. The grown films with different Sr (0.05 ≤ x ≤ 0.3) and Mn excess (y > 1) concentrations were nanostructured with vertically aligned column-shaped crystallites spread perpendicular to the film plane. It was found that microstructure, resistivity, and magnetoresistive properties of the films strongly depend on the strontium and manganese concentration. All films (including low Sr content) exhibit a metal−insulator transition typical for manganites at a certain temperature, Tm. The Tm vs. Sr content dependence for films with a constant Mn amount has maxima that shift to lower Sr values with the increase in Mn excess in the films. Moreover, the higher the Mn excess concentration in the films, the higher the Tm value obtained. The highest Tm values (270 K) were observed for nanostructured LSMO films with x = 0.17−0.18 and y = 1.15, while the highest low-field magnetoresistance (0.8% at 50 mT) at room temperature (290 K) was achieved for x = 0.3 and y = 1.15. The obtained low-field MR values were relatively high in comparison to those published in the literature results for lanthanum manganite films prepared without additional insulating oxide phases. It can be caused by high Curie temperature (383 K), high saturation magnetization at room temperature (870 emu/cm3), and relatively thin grain boundaries. The obtained results allow to fabricate CMR sensors for low magnetic field measurement at room temperature.
Collapse
Affiliation(s)
- Nerija Zurauskiene
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania
| | - Voitech Stankevic
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania
| | - Skirmantas Kersulis
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
| | - Milita Vagner
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
| | - Valentina Plausinaitiene
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
- Faculty of Chemistry and Geosciences, Vilnius University, 03225 Vilnius, Lithuania
| | - Jorunas Dobilas
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
| | - Remigijus Vasiliauskas
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
| | - Martynas Skapas
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
| | - Mykola Koliada
- Center for Physical Sciences and Technology, 10257 Vilnius, Lithuania; (V.S.); (S.K.); (M.V.); (V.P.); (J.D.); (R.V.); (M.S.); (M.K.)
| | - Jaroslaw Pietosa
- Institute of Physics of the Polish Academy of Sciences, 02-668 Warsaw, Poland; (J.P.); (A.W.)
| | - Andrzej Wisniewski
- Institute of Physics of the Polish Academy of Sciences, 02-668 Warsaw, Poland; (J.P.); (A.W.)
| |
Collapse
|
8
|
Wu PC, Wei CC, Zhong Q, Ho SZ, Liou YD, Liu YC, Chiu CC, Tzeng WY, Chang KE, Chang YW, Zheng J, Chang CF, Tu CM, Chen TM, Luo CW, Huang R, Duan CG, Chen YC, Kuo CY, Yang JC. Twisted oxide lateral homostructures with conjunction tunability. Nat Commun 2022; 13:2565. [PMID: 35538081 PMCID: PMC9090740 DOI: 10.1038/s41467-022-30321-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 04/13/2022] [Indexed: 11/28/2022] Open
Abstract
Epitaxial growth is of significant importance over the past decades, given it has been the key process of modern technology for delivering high-quality thin films. For conventional heteroepitaxy, the selection of proper single crystal substrates not only facilitates the integration of different materials but also fulfills interface and strain engineering upon a wide spectrum of functionalities. Nevertheless, the lattice structure, regularity and crystalline orientation are determined once a specific substrate is chosen. Here, we reveal the growth of twisted oxide lateral homostructure with controllable in-plane conjunctions. The twisted lateral homostructures with atomically sharp interfaces can be composed of epitaxial "blocks" with different crystalline orientations, ferroic orders and phases. We further demonstrate that this approach is universal for fabricating various complex systems, in which the unconventional physical properties can be artificially manipulated. Our results establish an efficient pathway towards twisted lateral homostructures, adding additional degrees of freedom to design epitaxial films.
Collapse
Affiliation(s)
- Ping-Chun Wu
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Chia-Chun Wei
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Qilan Zhong
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics, East China Normal University, 200241, Shanghai, China
| | - Sheng-Zhu Ho
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yi-De Liou
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yu-Chen Liu
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Chun-Chien Chiu
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Wen-Yen Tzeng
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Kuo-En Chang
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yao-Wen Chang
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Junding Zheng
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics, East China Normal University, 200241, Shanghai, China
| | - Chun-Fu Chang
- Max-Planck Institute for Chemical Physics of Solids, Dresden, 01187, Germany
| | - Chien-Ming Tu
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Tse-Ming Chen
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Chih-Wei Luo
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Rong Huang
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics, East China Normal University, 200241, Shanghai, China
| | - Chun-Gang Duan
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics, East China Normal University, 200241, Shanghai, China
| | - Yi-Chun Chen
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Chang-Yang Kuo
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Jan-Chi Yang
- Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan.
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan, 70101, Taiwan.
| |
Collapse
|
9
|
Arejdal M. Magnetic cooling and critical exponents at near room temperature: The SrCoO3 perovskite. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Abstract
Thin-film strontium ferromolybdate is a promising material for applications in room-temperature magnetic tunnel junction devices. These are spin-based, low-power-consuming alternatives to CMOS in non-volatile memories, comparators, analog-to-digital converters, and magnetic sensors. In this work, we consider the main tasks to be solved when creating such devices based on strontium ferromolybdate: (i) selecting an appropriate tunnel barrier material, (ii) determining the role of the interface roughness and its quantification, (iii) determining the influence of the interface dead layer, (iv) establishing appropriate models of the tunnel magnetoresistance, and (v) promoting the low-field magnetoresistance in (111)-oriented thin films. We demonstrate that (i) barrier materials with a lower effective electronegativity than strontium ferromolybdate are beneficial, (ii) diminution of the magnetic offset field (the latter caused by magnetic coupling) requires a wavy surface rather than solely a surface with small roughness, (iii) the interface dead-layer thickness is of the order of 10 nm, (iv) the tunnel magnetoresistance deteriorates due to spin-independent tunneling and magnetically disordered interface layers, and (v) antiphase boundaries along the growth direction promote the negative low-field magnetoresistance by reducing charge carrier scattering in the absence of the field.
Collapse
|
11
|
Nanostructured Manganite Films Grown by Pulsed Injection MOCVD: Tuning Low- and High-Field Magnetoresistive Properties for Sensors Applications. SENSORS 2022; 22:s22020605. [PMID: 35062569 PMCID: PMC8780160 DOI: 10.3390/s22020605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 12/04/2022]
Abstract
The results of colossal magnetoresistance (CMR) properties of La0.83Sr0.17Mn1.21O3 (LSMO) films grown by pulsed injection MOCVD technique onto various substrates are presented. The films with thicknesses of 360 nm and 60 nm grown on AT-cut single crystal quartz, polycrystalline Al2O3, and amorphous Si/SiO2 substrates were nanostructured with column-shaped crystallites spread perpendicular to the film plane. It was found that morphology, microstructure, and magnetoresistive properties of the films strongly depend on the substrate used. The low-field MR at low temperatures (25 K) showed twice higher values (−31% at 0.7 T) for LSMO/quartz in comparison to films grown on the other substrates (−15%). This value is high in comparison to results published in literature for manganite films prepared without additional insulating oxides. The high-field MR measured up to 20 T at 80 K was also the highest for LSMO/quartz films (−56%) and demonstrated the highest sensitivity S = 0.28 V/T at B = 0.25 T (voltage supply 2.5 V), which is promising for magnetic sensor applications. It was demonstrated that Mn excess Mn/(La + Sr) = 1.21 increases the metal-insulator transition temperature of the films up to 285 K, allowing the increase in the operation temperature of magnetic sensors up to 363 K. These results allow us to fabricate CMR sensors with predetermined parameters in a wide range of magnetic fields and temperatures.
Collapse
|
12
|
Boricha H, Udeshi B, Mukherjee S, Solanki P, Shah N. Resistivity and magnetoresistance behaviors of La0.7Sr0.3MnO3-BiFeO3 matrix-particles composites. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
13
|
Zhang C, Ding S, Qiao K, Li J, Li Z, Yin Z, Sun J, Wang J, Zhao T, Hu F, Shen B. Large Low-Field Magnetoresistance (LFMR) Effect in Free-Standing La 0.7Sr 0.3MnO 3 Films. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28442-28450. [PMID: 34105344 DOI: 10.1021/acsami.1c03753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The realization of a large low-field magnetoresistance (LFMR) effect in free-standing magnetic oxide films is a crucial goal toward promoting the development of flexible, low power consumption, and nonvolatile memory devices for information storage. La0.7Sr0.3MnO3 (LSMO) is an ideal material for spintronic devices due to its excellent magnetic and electronic properties. However, it is difficult to achieve both a large LFMR effect and high flexibility in LSMO films due to the lack of research on LFMR-related mechanisms and the strict LSMO growth conditions, which require rigid substrates. Here, we induced a large LFMR effect in an LSMO/mica heterostructure by utilizing a disorder-related spin-polarized tunneling effect and developed a simple transfer method to obtain free-standing LSMO films for the first time. Electrical and magnetic characterizations of these free-standing LSMO films revealed that all of the principal properties of LSMO were sustained under compressive and tensile conditions. Notably, the magnetoresistance of the processed LSMO film reached up to 16% under an ultrasmall magnetic field (0.1 T), which is 80 times that of a traditional LSMO film. As a demonstration, a stable nonvolatile multivalue storage function in flexible LSMO films was successfully achieved. Our work may pave the way for future wearable resistive memory device applications.
Collapse
Affiliation(s)
- Cheng Zhang
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Shuaishuai Ding
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University, Tianjin 300072, People's Republic of China
| | - Kaiming Qiao
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jia Li
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhe Li
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhuo Yin
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jirong Sun
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, People's Republic of China
| | - Jing Wang
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Fujian Institute of Innovation, Chinese Academy of Sciences, Fuzhou, Fujian 350108, People's Republic of China
| | - Tongyun Zhao
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, People's Republic of China
| | - Fengxia Hu
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, People's Republic of China
| | - Baogen Shen
- Beijing National Laboratory of Condensed Matter Physics & Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, People's Republic of China
| |
Collapse
|
14
|
Kumar PA, Lashgari K, Naim Katea S, Karis O, Jansson K, Sarma DD, Westin G. All‐alkoxide based deposition and properties of a multilayer La
0.67
Sr
0.33
MnO
3
/CoFe
2
O
4
/La
0.67
Sr
0.33
MnO
3
film. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- P. Anil Kumar
- 1 Disc Drive Derry Northern Ireland United Kingdom
- Department of Physics and Astronomy Ångström Laboratory Uppsala University 75120 Uppsala Sweden
| | - Koroush Lashgari
- Department of Chemistry-Ångström Ångström Laboratory Uppsala University 75121 Uppsala, Schonen Sweden
| | - Sarmad Naim Katea
- Department of Chemistry-Ångström Ångström Laboratory Uppsala University 75121 Uppsala, Schonen Sweden
| | - Olof Karis
- Department of Physics and Astronomy Ångström Laboratory Uppsala University 75120 Uppsala Sweden
| | - Kjell Jansson
- Department of Materials and Environmental Chemistry Stockholm University 10691 Stockholm Sweden
| | - D. D. Sarma
- Department of Physics and Astronomy Ångström Laboratory Uppsala University 75120 Uppsala Sweden
- Solid State and Structural Chemistry Unit Indian Institute of Science Bengaluru 560012 India
| | - Gunnar Westin
- Department of Chemistry-Ångström Ångström Laboratory Uppsala University 75121 Uppsala, Schonen Sweden
| |
Collapse
|
15
|
Nuzhnyy D, Petzelt J, Bovtun V, Savinov M, Bednyakov P, Kempa M, Kaman O, Levinský P, Hejtmánek J, Jirák Z. Broadband dielectric spectroscopy of La 0.65Sr 0.35MnO 3@TiO 2core-shell nanocomposites. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:415701. [PMID: 32498061 DOI: 10.1088/1361-648x/ab997b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
Core-shell composites of ferromagnetic conducting nanoparticles La0.65Sr0.35MnO3(LSMO) embedded in an insulating matrix of TiO2(LSMO@TiO2) have been processed, structurally and magnetically characterized, and their DC magnetoresistivity and complex dielectric response measured and fitted from Hz up to the infrared (IR) range (1014Hz). XRD indicates that the TiO2shells are amorphous. Modelling of the IR spectra using standard models based on the effective medium approximation has it confirmed and has characterized the effective phonon modes of the LSMO nanoceramics and LSMO@TiO2composite. Modelling of the lower-frequency spectra has shown that TiO2shell thicknesses are rather non-uniform down to thin nm values, which leads to giant low-frequency permittivity values and non-negligible free-carrier tunnelling among the LSMO cores. Two main dielectric dispersion regions were observed and shown to be due to the inhomogeneous conductivity-the one occuring in the 1011-1012Hz range relates to nonmagnetic less-conducting dead layers on the surface of LSMO nanocrystallites and the broad second one below the 1010Hz range is due to the non-uniform thicknesses of the dielectric TiO2shells. In the IR range, effective phonon modes of the LSMO nanoceramics and LSMO@TiO2composite were characterized from the reflectivity spectra.
Collapse
Affiliation(s)
- Dmitry Nuzhnyy
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Jan Petzelt
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Viktor Bovtun
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Maxim Savinov
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Petr Bednyakov
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Martin Kempa
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Ondřej Kaman
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Petr Levinský
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Jiří Hejtmánek
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| | - Zdeněk Jirák
- Institute of Physics of the Czech Academy of Sciences, 182 21 Prague 8, Czech Republic
| |
Collapse
|
16
|
Zhang J, Zhang H, Zhang H, Ma Y, Chen X, Meng F, Qi S, Chen Y, Hu F, Zhang Q, Liu B, Shen B, Zhao W, Han W, Sun J. Long-Range Magnetic Order in Oxide Quantum Wells Hosting Two-Dimensional Electron Gases. ACS APPLIED MATERIALS & INTERFACES 2020; 12:28775-28782. [PMID: 32459951 DOI: 10.1021/acsami.0c05332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To incorporate spintronics functionalities into two-dimensional devices, it is strongly desired to get two-dimensional electron gases (2DEGs) with high spin polarization. Unfortunately, the magnetic characteristics of the typical 2DEG at the LaAlO3/SrTiO3 interface are very weak due to the nonmagnetic character of SrTiO3 and LaAlO3. While most of the previous works focused on perovskite oxides, here, we extended the exploration for magnetic 2DEG beyond the scope of perovskite combinations, composing 2DEG with SrTiO3 and NaCl-structured EuO that owns a large saturation magnetization and a fairly high Curie temperature. We obtained the 2DEGs that show long-range magnetic order and thus unusual behaviors marked by isotropic butterfly shaped magnetoresistance and remarkable anomalous Hall effect. We found evidence for the presence of more conductive domain walls than elsewhere in the oxide layer where the 2DEG resides. More than that, a relation between interfacial magnetism and carrier density is established. On this basis, the intermediate magnetic states between short-range and long-range ordered states can be achieved. The present work provides guidance for the design of high-performance magnetic 2DEGs.
Collapse
Affiliation(s)
- Jine Zhang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Hui Zhang
- Fert Beijing Institute, School of Microelectronics, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University, Beijing 100191, People's Republic of China
| | - Hongrui Zhang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yang Ma
- International Centre for Quantum Materials, School of Physics, Peking University, Beijing 100871, People's Republic of China
- Collaborative Innovation Centre of Quantum Matter, Beijing 100871, People's Republic of China
| | - Xiaobing Chen
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Fanqi Meng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Shaojin Qi
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yuansha Chen
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Fengxia Hu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, People's Republic of China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Banggui Liu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Baogen Shen
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, People's Republic of China
| | - Weisheng Zhao
- Fert Beijing Institute, School of Microelectronics, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University, Beijing 100191, People's Republic of China
| | - Wei Han
- International Centre for Quantum Materials, School of Physics, Peking University, Beijing 100871, People's Republic of China
- Collaborative Innovation Centre of Quantum Matter, Beijing 100871, People's Republic of China
| | - Jirong Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, People's Republic of China
| |
Collapse
|
17
|
Li X, Yin L, Lai Z, Wu M, Sheng Y, Zhang L, Sun Y, Chen S, Li X, Zhang J, Li Y, Liu K, Wang K, Yu D, Bai X, Mi W, Gao P. Atomic origin of spin-valve magnetoresistance at the SrRuO 3 grain boundary. Natl Sci Rev 2020; 7:755-762. [PMID: 34692094 PMCID: PMC8288863 DOI: 10.1093/nsr/nwaa004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/11/2020] [Accepted: 01/12/2020] [Indexed: 11/14/2022] Open
Abstract
Defects exist ubiquitously in crystal materials, and usually exhibit a very different nature from the bulk matrix. Hence, their presence can have significant impacts on the properties of devices. Although it is well accepted that the properties of defects are determined by their unique atomic environments, the precise knowledge of such relationships is far from clear for most oxides because of the complexity of defects and difficulties in characterization. Here, we fabricate a 36.8° SrRuO3 grain boundary of which the transport measurements show a spin-valve magnetoresistance. We identify its atomic arrangement, including oxygen, using scanning transmission electron microscopy and spectroscopy. Based on the as-obtained atomic structure, the density functional theory calculations suggest that the spin-valve magnetoresistance occurs because of dramatically reduced magnetic moments at the boundary. The ability to manipulate magnetic properties at the nanometer scale via defect control allows new strategies to design magnetic/electronic devices with low-dimensional magnetic order.
Collapse
Affiliation(s)
- Xujing Li
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Li Yin
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology, School of Science, Tianjin University, Tianjin 300354, China
| | - Zhengxun Lai
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology, School of Science, Tianjin University, Tianjin 300354, China
| | - Mei Wu
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- International Center for Quantum Materials, Peking University, Beijing 100871, China
| | - Yu Sheng
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Lei Zhang
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yuanwei Sun
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- International Center for Quantum Materials, Peking University, Beijing 100871, China
| | - Shulin Chen
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
| | - Xiaomei Li
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Jingmin Zhang
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
| | - Yuehui Li
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- International Center for Quantum Materials, Peking University, Beijing 100871, China
| | - Kaihui Liu
- State Key Laboratory for Artificial Microstructure & Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Centre of Quantum Matter, Beijing 100871, China
| | - Kaiyou Wang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dapeng Yu
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- State Key Laboratory for Artificial Microstructure & Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
- Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuedong Bai
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Centre of Quantum Matter, Beijing 100871, China
| | - Wenbo Mi
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology, School of Science, Tianjin University, Tianjin 300354, China
| | - Peng Gao
- Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China
- International Center for Quantum Materials, Peking University, Beijing 100871, China
- Collaborative Innovation Centre of Quantum Matter, Beijing 100871, China
| |
Collapse
|
18
|
Henchiri C, Mnasri T, Benali A, Hamdi R, Dhahri E, Valente MA, Costa BFO. Structural study and large magnetocaloric entropy change at room temperature of La 1-x □ x MnO 3 compounds. RSC Adv 2020; 10:8352-8363. [PMID: 35497833 PMCID: PMC9050008 DOI: 10.1039/c9ra10469k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/10/2020] [Indexed: 11/21/2022] Open
Abstract
In this study, our central focus is to investigate the magnetocaloric characteristics of a La1-x □ x MnO3 (x = 0.1, 0.2 and 0.3) series prepared by a sol-gel technique published in Prog. Mater. Sci., 93, 2018, 112-232. The crystallographic study revealed that our compounds crystallize in a rhombohedral structure with R3̄c. Ferromagnetic (FM) and paramagnetic (PM) characters were detected from the variation in magnetization as a function of magnetic fields at different temperatures. The second order transition was verified from the Arrott plots (M 2 vs. (μ 0 H/M)), where the slopes have a positive value. In order to verify the second order, we traced the variation of magnetization vs. temperature at different magnetic fields for x = 0.2. This revealed a ferromagnetic (FM)-paramagnetic (PM) transition when temperature increases. Relying on the indirect method while using the Maxwell formula, we determined the variation in the entropy (-ΔS M) as a function of temperature for different magnetic fields for the three samples. We note that all the studied systems stand as good candidates for magnetic refrigeration with relative cooling power (RCP) values of around 131.4, 83.38 and 57.26 J kg-1 with magnetic fields below 2 T, respectively. Subsequently, the magnetocaloric effect was investigated by a phenomenological model for x = 0.2. The extracted data confirm that this phenomenological model is appropriate for the prediction of magnetocaloric properties. The study also demonstrated that this La0.8□0.2MnO3 system exhibits a universal behaviour.
Collapse
Affiliation(s)
- C Henchiri
- Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, Université de Sfax B. P. 802 Sfax 3018 Tunisia
| | - T Mnasri
- Research Unit UPIM, Faculty of Science, University of Gafsa 2112 Tunisia
| | - A Benali
- Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, Université de Sfax B. P. 802 Sfax 3018 Tunisia.,I3N, Physics Department, University of Aveiro 3810-193 Aveiro Portugal
| | - R Hamdi
- Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, Université de Sfax B. P. 802 Sfax 3018 Tunisia.,College of Health and Life Sciences, Hamad Bin Khalifa University Doha Qatar
| | - E Dhahri
- Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, Université de Sfax B. P. 802 Sfax 3018 Tunisia
| | - M A Valente
- I3N, Physics Department, University of Aveiro 3810-193 Aveiro Portugal
| | - B F O Costa
- CFisUC, Physics Department, University of Coimbra RuaLarga 3004-516 Coimbra Portugal
| |
Collapse
|
19
|
Boileau A, Dallocchio M, Baudouin F, David A, Lüders U, Mercey B, Pautrat A, Demange V, Guilloux-Viry M, Prellier W, Fouchet A. Textured Manganite Films Anywhere. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37302-37312. [PMID: 31512470 DOI: 10.1021/acsami.9b12209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
New paradigms are required in microelectronics when the transistor is in its downscaling limit and integration of materials presenting functional properties not available in classical silicon is one of the promising alternatives. Here, we demonstrate the possibility to grow La0.67Sr0.33MnO3 (LSMO) functional materials on amorphous substrates with properties close to films grown on single-crystalline substrates using a two-dimensional seed layer. X-ray diffraction and electron backscatter diffraction mapping demonstrate that the Ca2Nb3O10- nanosheet (NS) layer induces epitaxial stabilization of LSMO films with a strong out-of-plane (001) texture, whereas the growth of LSMO films on uncoated glass substrates exhibits a nontextured polycrystalline phase. The magnetic properties of LSMO films deposited on NS are similar to those of the LSMO grown on SrTiO3 single-crystal substrates in the same conditions (which is used as a reference in this work). Moreover, transport measurements take advantages of the texture and polycrystalline properties to induce low-field magnetoresistance at low temperature and also a high value of 40% magnetoresistance from 10 to 300 K, making it interesting for sensor applications. Therefore, the NS seed layer offers new perspectives for the integration of functional materials grown at moderate temperatures on any substrate, which will be the key for the development of oxitronics.
Collapse
Affiliation(s)
- Alexis Boileau
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Marie Dallocchio
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Florent Baudouin
- ISCR Univ Rennes, CNRS, ISCR-UMR 6226, ScanMAT-UMS 2001 , F-35000 Rennes , France
| | - Adrian David
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Ulrike Lüders
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Bernard Mercey
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Alain Pautrat
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Valérie Demange
- ISCR Univ Rennes, CNRS, ISCR-UMR 6226, ScanMAT-UMS 2001 , F-35000 Rennes , France
| | | | - Wilfrid Prellier
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| | - Arnaud Fouchet
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT , 14000 Caen , France
| |
Collapse
|
20
|
Transport Properties of La0.8Sr0.2MnO3 and Bi0.95Dy0.05FeO3 Based (0.5) La0.8Sr0.2MnO3 + (0.5) Bi0.95Dy0.05FeO3 Composite. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01112-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
21
|
Effect of NiO impurity on the magneto-transport properties of the La0.7Ba0.3MnO3 granular manganite. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.10.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
22
|
Krichene A, Boujelben W, Mukherjee S, Shah NA, Solanki PS. An empirical model for magnetic field dependent resistivity and magnetoresistance in manganites: application on polycrystalline charge-ordered La 0.4Gd 0.1Ca 0.5MnO 3. Phys Chem Chem Phys 2018; 20:12608-12617. [PMID: 29693101 DOI: 10.1039/c8cp01486h] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we have investigated the electrical and magnetic response of a La0.4Gd0.1Ca0.5MnO3 polycrystalline sample. This sample seems to exhibit fascinating phenomena like charge ordering, magnetic phase separation, training effects and kinetic arrest. It also shows colossal values of negative magnetoresistance (∼91.7% at 96 K under 1 T applied magnetic field), which raises the possibility of using this sample for technological applications. We have also proposed, in this work, a new empirical model to describe the evolution of resistivity and magnetoresistance as a function of magnetic field. This model was successfully tested on the La0.4Gd0.1Ca0.5MnO3 sample in spite of its complicated magnetic behavior, which suggests the use of this model for other magnetic samples in order to check its validity.
Collapse
Affiliation(s)
- A Krichene
- Laboratoire de Physique des Matériaux, Faculté des Sciences de Sfax, Université de Sfax, B.P. 1171, 3000 Sfax, Tunisia.
| | | | | | | | | |
Collapse
|
23
|
Chen C, Li H, Seki T, Yin D, Sanchez-Santolino G, Inoue K, Shibata N, Ikuhara Y. Direct Determination of Atomic Structure and Magnetic Coupling of Magnetite Twin Boundaries. ACS NANO 2018; 12:2662-2668. [PMID: 29480718 DOI: 10.1021/acsnano.7b08802] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Clarifying how the atomic structure of interfaces/boundaries in materials affects the magnetic coupling nature across them is of significant academic value and will facilitate the development of state-of-the-art magnetic devices. Here, by combining atomic-resolution transmission electron microscopy, atomistic spin-polarized first-principles calculations, and differential phase contrast imaging, we conduct a systematic investigation of the atomic and electronic structures of individual Fe3O4 twin boundaries (TBs) and determine their concomitant magnetic couplings. We demonstrate that the magnetic coupling across the Fe3O4 TBs can be either antiferromagnetic or ferromagnetic, which directly depends on the TB atomic core structures and resultant electronic structures within a few atomic layers. Revealing the one-to-one correspondence between local atomic structures and magnetic properties of individual grain boundaries will shed light on in-depth understanding of many interesting magnetic behaviors of widely used polycrystalline magnetic materials, which will surely promote the development of advanced magnetic materials and devices.
Collapse
Affiliation(s)
- Chunlin Chen
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , Shenyang 110016 , China
- Advanced Institute for Materials Research , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan
| | - Hongping Li
- Advanced Institute for Materials Research , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan
- Institute for Advanced Materials, School of Materials Science and Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Takehito Seki
- Institute of Engineering Innovation , The University of Tokyo , 2-11-16 Yayoi , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Deqiang Yin
- Advanced Institute for Materials Research , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan
- College of Aerospace Engineering , Chongqing University , Chongqing 400044 , China
| | - Gabriel Sanchez-Santolino
- Institute of Engineering Innovation , The University of Tokyo , 2-11-16 Yayoi , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Kazutoshi Inoue
- Advanced Institute for Materials Research , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan
| | - Naoya Shibata
- Institute of Engineering Innovation , The University of Tokyo , 2-11-16 Yayoi , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Yuichi Ikuhara
- Advanced Institute for Materials Research , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan
- Institute of Engineering Innovation , The University of Tokyo , 2-11-16 Yayoi , Bunkyo-ku, Tokyo 113-8656 , Japan
- Nanostructures Research Laboratory , Japan Fine Ceramics Center , 2-4-1 Mutsuno , Atsuta, Nagoya 456-8587 , Japan
| |
Collapse
|
24
|
Qian JJ, Qi WH, Li ZZ, Ma L, Tang GD, Du Y, Chen MY, Wu GH, Hu FX. Spin-dependent and spin-independent channels of electrical transport in perovskite manganites. RSC Adv 2018. [DOI: 10.1039/c7ra12878a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A model with two channels of electrical transport (TCET) for perovskite manganites is proposed, and it is described by an equivalent device with two current-carrier channels.
Collapse
Affiliation(s)
- J. J. Qian
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - W. H. Qi
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - Z. Z. Li
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - L. Ma
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - G. D. Tang
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - Y. N. Du
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - M. Y. Chen
- Hebei Advanced Thin Film Laboratory
- Department of Physics
- Hebei Normal University
- Shijiazhuang City 050024
- People's Republic of China
| | - G. H. Wu
- State Key Laboratory of Magnetism
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - F. X. Hu
- State Key Laboratory of Magnetism
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| |
Collapse
|
25
|
Zhang G, Chen H, Gu Z, Zhang P, Zeng T, Huang F. Facile Synthesis, Magnetic and Electric Characterization of Mixed Valence La0.75K0.25AMnTiO6 (A = Sr and Ba) Perovskites. Inorg Chem 2017; 56:10404-10411. [DOI: 10.1021/acs.inorgchem.7b01337] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ganghua Zhang
- Shanghai Key Laboratory
of Engineering Materials Application and Evaluation, Shanghai Research Institute of Materials, Shanghai 200437, P. R. China
- State Key Laboratory of High Performance
Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Haijie Chen
- State Key Laboratory of High Performance
Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Zheming Gu
- Shanghai Key Laboratory
of Engineering Materials Application and Evaluation, Shanghai Research Institute of Materials, Shanghai 200437, P. R. China
| | - Peizhi Zhang
- The Ministry of Powder Materials, Shanghai Research Institute of Materials, Shanghai 200437, P. R. China
| | - Tao Zeng
- Shanghai Key Laboratory
of Engineering Materials Application and Evaluation, Shanghai Research Institute of Materials, Shanghai 200437, P. R. China
| | - Fuqiang Huang
- State Key Laboratory of High Performance
Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| |
Collapse
|
26
|
Michalik JM, Rybicki D, Tarnawski Z, Sikora M, De Teresa JM, Ibarra MR, Kapusta C. 55Mn NMR observation of colossal magnetoresistance effect in Sm 0.55Sr 0.45MnO 3. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:265802. [PMID: 28498111 DOI: 10.1088/1361-648x/aa72c5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Temperature dependent 55Mn NMR study of Sm0.55Sr0.45MnO3 is reported. Previous bulk magnetization measurements have shown that below T C ~ 125 K the sample is ferromagnetic metallic (FMM) and above TC it is charge ordered and insulating. In present report, we show that from zero-field NMR a single line double-exchange (DE) signal is observed at temperatures up to 139 K, which is due to a presence of FMM clusters also above T C. The intensity of the DE line follows the temperature dependence of the magnetization measured at 0.01 T. When a magnetic field up to 2 T is applied at 139 K (i.e. 14 K above T C), a strong increase in NMR intensity of the DE line is observed indicating that content of FMM regions increases. This reveals that metallicity is induced in the material by the applied magnetic field and explains the observed colossal magnetoresistance (CMR) effect at the microscopic level. The observation agrees with previous results, which confirm that the percolation of the FMM clusters is responsible for the CMR effect. The shift of the resonant frequency in the applied field is three times smaller compared to decrease expected from gyromagnetic ratio, which indicates an antiferromagnetic coupling between the FMM clusters.
Collapse
Affiliation(s)
- J M Michalik
- Faculty of Physics and Applied Computer Science, Department of Solid State Physics, AGH University of Science and Technology, Al. Mickiewicza, 30-059 Krakow, Poland
| | | | | | | | | | | | | |
Collapse
|
27
|
Pullini D, Sgroi MF, Mahmoud A, Gauquelin N, Maschio L, Ferrari AM, Groenen R, Damen C, Rijnders G, van den Bos KHW, Van Aert S, Verbeeck J. One Step Toward a New Generation of C-MOS Compatible Oxide P-N Junctions: Structure of the LSMO/ZnO Interface Elucidated by an Experimental and Theoretical Synergic Work. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20974-20980. [PMID: 28540719 DOI: 10.1021/acsami.7b04089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Heterostructures formed by La0.7Sr0.3MnO3/ZnO (LSMO/ZnO) interfaces exhibit extremely interesting electronic properties making them promising candidates for novel oxide p-n junctions, with multifunctional features. In this work, the structure of the interface is studied through a combined experimental/theoretical approach. Heterostructures were grown epitaxially and homogeneously on 4″ silicon wafers, characterized by advanced electron microscopy imaging and spectroscopy and simulated by ab initio density functional theory calculations. The simulation results suggest that the most stable interface configuration is composed of the (001) face of LSMO, with the LaO planes exposed, in contact with the (112̅0) face of ZnO. The ab initio predictions agree well with experimental high-angle annular dark field scanning transmission electron microscopy images and confirm the validity of the suggested structural model. Electron energy loss spectroscopy confirms the atomic sharpness of the interface. From statistical parameter estimation theory, it has been found that the distances between the interfacial planes are displaced from the respective ones of the bulk material. This can be ascribed to the strain induced by the mismatch between the lattices of the two materials employed.
Collapse
Affiliation(s)
- Daniele Pullini
- Centro Ricerche FIAT , Strada Torino 50, 10043, Orbassano (TO), Italy
| | | | - Agnes Mahmoud
- Centro Ricerche FIAT , Strada Torino 50, 10043, Orbassano (TO), Italy
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) Centre, Università di Torino , via Giuria 5, I-10125 Torino, Italy
| | - Nicolas Gauquelin
- EMAT University of Antwerp , Groenenborgerlaan 171, BE-2020 Antwerp, Belgium
| | - Lorenzo Maschio
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) Centre, Università di Torino , via Giuria 5, I-10125 Torino, Italy
| | - Anna Maria Ferrari
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) Centre, Università di Torino , via Giuria 5, I-10125 Torino, Italy
| | - Rik Groenen
- Twente Solid State Technology , Institutenweg 25, 7521 PH Enschede, The Netherlands
| | - Cas Damen
- Twente Solid State Technology , Institutenweg 25, 7521 PH Enschede, The Netherlands
| | - Guus Rijnders
- Twente Solid State Technology , Institutenweg 25, 7521 PH Enschede, The Netherlands
- Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente , 7500 AE Enschede, The Netherlands
| | | | - Sandra Van Aert
- EMAT University of Antwerp , Groenenborgerlaan 171, BE-2020 Antwerp, Belgium
| | - Johan Verbeeck
- EMAT University of Antwerp , Groenenborgerlaan 171, BE-2020 Antwerp, Belgium
| |
Collapse
|
28
|
Many-body Tunneling and Nonequilibrium Dynamics of Doublons in Strongly Correlated Quantum Dots. Sci Rep 2017; 7:2486. [PMID: 28559583 PMCID: PMC5449409 DOI: 10.1038/s41598-017-02728-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 04/13/2017] [Indexed: 12/03/2022] Open
Abstract
Quantum tunneling dominates coherent transport at low temperatures in many systems of great interest. In this work we report a many–body tunneling (MBT), by nonperturbatively solving the Anderson multi-impurity model, and identify it a fundamental tunneling process on top of the well–acknowledged sequential tunneling and cotunneling. We show that the MBT involves the dynamics of doublons in strongly correlated systems. Proportional to the numbers of dynamical doublons, the MBT can dominate the off–resonant transport in the strongly correlated regime. A T3/2–dependence of the MBT current on temperature is uncovered and can be identified as a fingerprint of the MBT in experiments. We also prove that the MBT can support the coherent long–range tunneling of doublons, which is well consistent with recent experiments on ultracold atoms. As a fundamental physical process, the MBT is expected to play important roles in general quantum systems.
Collapse
|
29
|
Thi N'Goc HL, Mouafo LDN, Etrillard C, Torres-Pardo A, Dayen JF, Rano S, Rousse G, Laberty-Robert C, Calbet JG, Drillon M, Sanchez C, Doudin B, Portehault D. Surface-Driven Magnetotransport in Perovskite Nanocrystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604745. [PMID: 28009460 DOI: 10.1002/adma.201604745] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 11/19/2016] [Indexed: 06/06/2023]
Abstract
Unique insights into magnetotransport in 20 nm ligand-free La0.67 Sr0.33 MnO3 perovskite nanocrystals of nearly perfect crystalline quality reveal a chemically altered 0.8 nm thick surface layer that triggers exceptionally large magnetoresistance at low temperature, independently of the spin polarization of the ferromagnetic core. This discovery shows how the nanoscale impacts magnetotransport in a material widely spread as electrode in hybrid spintronic devices.
Collapse
Affiliation(s)
- Ha Le Thi N'Goc
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (CMCP), 11 place Marcelin Berthelot, F-75005, Paris, France
| | - Louis Donald Notemgnou Mouafo
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg, France
| | - Céline Etrillard
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg, France
| | - Almudena Torres-Pardo
- Departamento de Química Inorgánica I, Facultad de Químicas, Universidad Complutense CEI Moncloa, 28040, Madrid, Spain
| | - Jean-François Dayen
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg, France
| | - Simon Rano
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (CMCP), 11 place Marcelin Berthelot, F-75005, Paris, France
| | - Gwenaëlle Rousse
- Sorbonne Universités, UPMC Univ Paris 06, Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 place Marcelin Berthelot, 75231, Paris Cedex 05, France
| | - Christel Laberty-Robert
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (CMCP), 11 place Marcelin Berthelot, F-75005, Paris, France
| | - Jose Gonzales Calbet
- Departamento de Química Inorgánica I, Facultad de Químicas, Universidad Complutense CEI Moncloa, 28040, Madrid, Spain
- Centro Nacional de Microscopía Electrónica, Universidad Complutense, 28040, Madrid, Spain
| | - Marc Drillon
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg, France
| | - Clément Sanchez
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (CMCP), 11 place Marcelin Berthelot, F-75005, Paris, France
| | - Bernard Doudin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg, France
| | - David Portehault
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (CMCP), 11 place Marcelin Berthelot, F-75005, Paris, France
| |
Collapse
|
30
|
Mohamed AEMA, Hernando B, Díaz-García M. Room temperature magneto-transport properties of La0.7Ba0.3MnO3 manganite. JOURNAL OF ALLOYS AND COMPOUNDS 2017; 695:2645-2651. [DOI: 10.1016/j.jallcom.2016.11.177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
31
|
Park J, Lee K, Lee SY, Nandadasa CN, Kim S, Lee KH, Lee YH, Hosono H, Kim SG, Kim SW. Strong Localization of Anionic Electrons at Interlayer for Electrical and Magnetic Anisotropy in Two-Dimensional Y2C Electride. J Am Chem Soc 2017; 139:615-618. [DOI: 10.1021/jacs.6b11950] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jongho Park
- Department
of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Center
for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
| | - Kimoon Lee
- Department
of Physics, Kunsan National University, Gunsan 54150, Republic of Korea
| | - Seung Yong Lee
- Department
of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Center
for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
| | - Chandani N. Nandadasa
- Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University, Mississippi State, Mississippi 39792, United States
| | - Sungho Kim
- Center
for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
| | - Kyu Hyoung Lee
- Department
of Nano Applied Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Young Hee Lee
- Department
of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Center
for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
| | - Hideo Hosono
- Materials
Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Seong-Gon Kim
- Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University, Mississippi State, Mississippi 39792, United States
| | - Sung Wng Kim
- Department
of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| |
Collapse
|
32
|
Mohamed AEMA, Hernando B, Ahmed A. Magnetic, magnetocaloric and thermoelectric properties of nickel doped manganites. JOURNAL OF ALLOYS AND COMPOUNDS 2017; 692:381-387. [DOI: 10.1016/j.jallcom.2016.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
33
|
Li G, Zhang B, Baluyan T, Rao J, Wu J, Novakova AA, Rudolf P, Blake GR, de Groot RA, Palstra TTM. Metal–Insulator Transition Induced by Spin Reorientation in Fe7Se8 Grain Boundaries. Inorg Chem 2016; 55:12912-12922. [DOI: 10.1021/acs.inorgchem.6b02257] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guowei Li
- Zernike Institute
for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Baomin Zhang
- School of Physics and Technology, University of Jinan, 336 West Road
of Nan Xinzhuang, 250022 Jinan, P. R. China
| | - Tigran Baluyan
- Faculty of Physics, Moscow State University, Vorobyovy Gory, 119899 Moscow, Russia
| | - Jiancun Rao
- School of Materials
Science and Engineering, Harbin Institute of Technology, 150001 Harbin, P. R. China
| | - Jiquan Wu
- Zernike Institute
for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Alla A. Novakova
- Faculty of Physics, Moscow State University, Vorobyovy Gory, 119899 Moscow, Russia
| | - Petra Rudolf
- Zernike Institute
for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Graeme R. Blake
- Zernike Institute
for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Robert A. de Groot
- Zernike Institute
for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Thomas T. M. Palstra
- Zernike Institute
for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| |
Collapse
|
34
|
Enhancement of Low-field Magnetoresistance in Self-Assembled Epitaxial La0.67Ca0.33MnO3:NiO and La0.67Ca0.33MnO3:Co3O4 Composite Films via Polymer-Assisted Deposition. Sci Rep 2016; 6:26390. [PMID: 27381661 PMCID: PMC4933881 DOI: 10.1038/srep26390] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 04/28/2016] [Indexed: 11/09/2022] Open
Abstract
Polymer-assisted deposition method has been used to fabricate self-assembled epitaxial La0.67Ca0.33MnO3:NiO and La0.67Ca0.33MnO3:Co3O4 films on LaAlO3 substrates. Compared to pulsed-laser deposition method, polymer-assisted deposition provides a simpler and lower-cost approach to self-assembled composite films with enhanced low-field magnetoresistance effect. After the addition of NiO or Co3O4, triangular NiO and tetrahedral Co3O4 nanoparticles remain on the surface of La0.67Ca0.33MnO3 films. This results in a dramatic increase in resistivity of the films from 0.0061 Ω•cm to 0.59 Ω•cm and 1.07 Ω•cm, and a decrease in metal-insulator transition temperature from 270 K to 180 K and 172 K by the addition of 10%-NiO and 10%-Co3O4, respectively. Accordingly, the maximum absolute magnetoresistance value is improved from -44.6% to -59.1% and -52.7% by the addition of 10%-NiO and 10%-Co3O4, respectively. The enhanced low-field magnetoresistance property is ascribed to the introduced insulating phase at the grain boundaries. The magnetism is found to be more suppressed for the La0.67Ca0.33MnO3:Co3O4 composite films than the La0.67Ca0.33MnO3:NiO films, which can be attributed to the antiferromagnetic properties of the Co3O4 phase. The solution-processed composite films show enhanced low-field magnetoresistance effect which are crucial in practical applications. We expect our polymer-assisted deposited films paving the pathway in the field of hole-doped perovskites with their intrinsic colossal magnetoresistance.
Collapse
|
35
|
Ahmed AM, Mohamed AEMA, Abdellateef MA, Abd El-Ghanny HA. Magnetoresistive properties of Ni-doped La0.7Sr0.3MnO3 manganites. RARE METALS 2016; 35:551-558. [DOI: 10.1007/s12598-015-0465-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
|
36
|
Istomin SY, Chernova VV, Antipov EV, Lobanov MV, Bobrikov IA, Yushankhai VY, Balagurov AM, Hsu KY, Lin J‐Y, Chen JM, Lee JF, Volkova OS, Vasiliev AN. Wide‐Range Tuning of the Mo Oxidation State in La1–xSrxFe2/3Mo1/3O3 Perovskites. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | - Maxim V. Lobanov
- All‐Russian Scientific Research Institute of Aviation Materials 105005 Moscow Russia
| | | | | | | | - K. Y. Hsu
- National Chiao Tung University 30010 Hsinchu Taiwan
| | - J. ‐Y. Lin
- National Chiao Tung University 30010 Hsinchu Taiwan
| | - J. M. Chen
- National Synchrotron Radiation Research Center 30076 Hsinchu Taiwan
| | - J. F. Lee
- National Synchrotron Radiation Research Center 30076 Hsinchu Taiwan
| | - Olga S. Volkova
- Moscow State University 119991 Moscow Russia
- Ural Federal University 620002 Yekaterinburg Russia
- National University of Science and Technology “MISiS” 119049 Moscow Russia
| | - Alexander N. Vasiliev
- Moscow State University 119991 Moscow Russia
- Ural Federal University 620002 Yekaterinburg Russia
- National University of Science and Technology “MISiS” 119049 Moscow Russia
| |
Collapse
|
37
|
Niu W, Gao M, Wang X, Song F, Du J, Wang X, Xu Y, Zhang R. Evidence of weak localization in quantum interference effects observed in epitaxial La0.7Sr0.3MnO3 ultrathin films. Sci Rep 2016; 6:26081. [PMID: 27181882 PMCID: PMC4867642 DOI: 10.1038/srep26081] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 04/27/2016] [Indexed: 11/25/2022] Open
Abstract
Quantum interference effects (QIEs) dominate the appearance of low-temperature resistivity minimum in colossal magnetoresistance manganites. The T1/2 dependent resistivity under high magnetic field has been evidenced as electron-electron (e-e) interaction. However, the evidence of the other source of QIEs, weak localization (WL), still remains insufficient in manganites. Here we report on the direct experimental evidence of WL in QIEs observed in the single-crystal La0.7Sr0.3MnO3 (LSMO) ultrathin films deposited by laser molecular beam epitaxy. The sharp cusps around zero magnetic field in magnetoresistance measurements is unambiguously observed, which corresponds to the WL effect. This convincingly leads to the solid conclusion that the resistivity minima at low temperatures in single-crystal manganites are attributed to both the e-e interaction and the WL effect. Moreover, the temperature-dependent phase-coherence length corroborates the WL effect of LSMO ultrathin films is within a two-dimensional localization theory.
Collapse
Affiliation(s)
- Wei Niu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Ming Gao
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Xuefeng Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Fengqi Song
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, China
| | - Jun Du
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, China
| | - Xinran Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Yongbing Xu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Rong Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| |
Collapse
|
38
|
Ju C, Yang JC, Luo C, Shafer P, Liu HJ, Huang YL, Kuo HH, Xue F, Luo CW, He Q, Yu P, Arenholz E, Chen LQ, Zhu J, Lu X, Chu YH. Anomalous Electronic Anisotropy Triggered by Ferroelastic Coupling in Multiferroic Heterostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:876-883. [PMID: 26640119 DOI: 10.1002/adma.201502743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 07/06/2015] [Indexed: 06/05/2023]
Abstract
The ferroelastic strain coupling in multiferroic heterostructures is explored aiming at novel physical effects and fascinating functionality. Ferroelastic domain walls in manganites induced by a stripe BiFeO3 template can modulate the electronic transfer and sufficiently block the magnetic ordering, creating a vast anisotropy. The findings suggest the great importance of ferroelastic strain engineering in material modifications.
Collapse
Affiliation(s)
- Changcheng Ju
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation, Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Jan-Chi Yang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Cheng Luo
- Department of Electrophysics, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Padraic Shafer
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Heng-Jui Liu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yen-Lin Huang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Ho-Hung Kuo
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Fei Xue
- Department of Materials and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Chih-Wei Luo
- Department of Electrophysics, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Qing He
- Department of Physics, Durham University, Durham, DH1 3LE, UK
| | - Pu Yu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100084, China
| | - Elke Arenholz
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Long-Qing Chen
- Department of Materials and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Jinsong Zhu
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation, Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Xiaomei Lu
- National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation, Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Ying-Hao Chu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| |
Collapse
|
39
|
Zhang K, Dai J, Zhu X, Zhu X, Zuo X, Zhang P, Hu L, Lu W, Song W, Sheng Z, Wu W, Sun Y, Du Y. Vertical La0.7Ca0.3MnO3 nanorods tailored by high magnetic field assisted pulsed laser deposition. Sci Rep 2016; 6:19483. [PMID: 26778474 PMCID: PMC4725976 DOI: 10.1038/srep19483] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 12/14/2015] [Indexed: 11/09/2022] Open
Abstract
La0.7Ca0.3MnO3 (LCMO) thin films on (LaAlO3)0.3(Sr2AlTaO6)0.7 (001) [LSAT (001)] single crystal substrates have been prepared by high magnetic field assisted pulsed laser deposition (HMF-PLD) developed by ourselves. Uniformly sized and vertically aligned nanorod structures can be obtained under an applied high magnetic field above 5 T, and the dimension size of the nanorods can be manipulated by varying the applied magnetic field. It is found that the magnetic anisotropy is strongly correlated to the dimension size of the nanorods. A significantly enhanced low-field magnetoresistance (LFMR) of -36% under 0.5 T at 100 K can be obtained due to the enhanced carrier scattering at the vertical grain boundaries between the nanorods for the LCMO films. The growth mechanism of the nanorods has been also discussed, which can be attributed to the variation of deposition rate, adatom surface diffusion, and nucleation induced by the application of a high magnetic field in the film processing. The successful achievements of such vertical nanorod structures will provide an instructive route to investigate the physical nature of these nanostructures and achieve nanodevice manipulation.
Collapse
Affiliation(s)
- Kejun Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Jianming Dai
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Xuebin Zhu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Xiaoguang Zhu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Xuzhong Zuo
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Peng Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China.,University of Science and Technology of China, Hefei, 230026, China
| | - Ling Hu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Wenjian Lu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Wenhai Song
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Zhigao Sheng
- High Magnetic Field Laboratory, Chinese Academy of Science, Hefei, 230031, China
| | - Wenbin Wu
- High Magnetic Field Laboratory, Chinese Academy of Science, Hefei, 230031, China.,University of Science and Technology of China, Hefei, 230026, China
| | - Yuping Sun
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China.,High Magnetic Field Laboratory, Chinese Academy of Science, Hefei, 230031, China
| | - Youwei Du
- Nanjing National Laboratory of Microstructures and Department of Physics, Nanjing University, Nanjing 210093, P.R. China
| |
Collapse
|
40
|
Mohamed AEMA, Mohamed MA, Vega V, Hernando B, Ahmed AM. Tuning magnetoresistive and magnetocaloric properties via grain boundaries engineering in granular manganites. RSC Adv 2016; 6:77284-77290. [DOI: 10.1039/c6ra15874a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
The effect of interface size on the relative cooling power and magnetoresistive properties of La0.7Ba0.3MnO3 compounds is investigated.
Collapse
Affiliation(s)
| | - Mohamed A. Mohamed
- Instituto de Biología Molecular y Celular de Plantas
- Consejo Superior de Investigaciones Científicas-Universidad Politécnica de Valencia
- Valencia 46022
- Spain
| | - V. Vega
- Physics Department
- Faculty of Science
- Oviedo University
- Oviedo 33007
- Spain
| | - B. Hernando
- Physics Department
- Faculty of Science
- Oviedo University
- Oviedo 33007
- Spain
| | - A. M. Ahmed
- Physics Department
- Faculty of Science
- Sohag University
- Sohag 82524
- Egypt
| |
Collapse
|
41
|
Rivaldo-Gómez CM, Cabrera-Pasca GA, Zúñiga A, Carbonari AW, Souza JA. Hierarchically structured nanowires on and nanosticks in ZnO microtubes. Sci Rep 2015; 5:15128. [PMID: 26456527 PMCID: PMC4601030 DOI: 10.1038/srep15128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/17/2015] [Indexed: 11/25/2022] Open
Abstract
We report both coaxial core-shell structured microwires and ZnO microtubes with growth of nanosticks in the inner and nanowires on the outer surface as a novel hierarchical micro/nanoarchitecture. First, a core-shell structure is obtained—the core is formed by metallic Zn and the semiconducting shell is comprised by a thin oxide layer covered with a high density of nanowires. Such Zn/ZnO core-shell array showed magnetoresistance effect. It is suggested that magnetic moments in the nanostructured shell superimposes to the external magnetic field enhancing the MR effect. Second, microtubes decorated with nanowires on the external surface are obtained. In an intermediate stage, a hierarchical morphology comprised of discrete nanosticks in the inner surface of the microtube has been found. Hyperfine interaction measurements disclosed the presence of confined metallic Zn regions at the interface between linked ZnO grains forming a chain and a ZnO thicker layer. Surprisingly, the metallic clusters form highly textured thin flat regions oriented parallel to the surface of the microtube as revealed by the electrical field gradient direction. The driving force to grow the internal nanosticks has been ascribed to stress-induced migration of Zn ions due to compressive stress caused by the presence of these confined regions.
Collapse
Affiliation(s)
- C M Rivaldo-Gómez
- Universidade Federal do ABC, Santo André- São Paulo 09210-580, Brazil
| | - G A Cabrera-Pasca
- Universidade Federal do ABC, Santo André- São Paulo 09210-580, Brazil
| | - A Zúñiga
- Universidade Federal do ABC, Santo André- São Paulo 09210-580, Brazil
| | - A W Carbonari
- Instituto de Pesquisas Energéticas e Nucleares, Universidade de São Paulo, 05508-000 São Paulo, Brazil
| | - J A Souza
- Universidade Federal do ABC, Santo André- São Paulo 09210-580, Brazil
| |
Collapse
|
42
|
Resonant tunnelling in a quantum oxide superlattice. Nat Commun 2015; 6:7424. [DOI: 10.1038/ncomms8424] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 05/07/2015] [Indexed: 11/08/2022] Open
|
43
|
Dhahri A, Jemmali M, Dhahri E, Hlil EK. Electrical transport and giant magnetoresistance in La0.75Sr0.25Mn1-xCrxO3 (0.15, 0.20 and 0.25) manganite oxide. Dalton Trans 2015; 44:5620-7. [PMID: 25700188 DOI: 10.1039/c4dt03662j] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated the influence of chromium (Cr) doping on the magneto-electrical properties of polycrystalline samples La0.75Sr0.25Mn1-xCrxO3 (0.15 ≤ x ≤ 0.25), prepared by the sol-gel method. Comparison of experimental data with the theoretical models shows that in the metal-ferromagnetic region, the electrical behavior of the three samples is quite well described by a theory based on electron-electron, electron-phonon and electron-magnon scattering and Kondo-like spin dependent scattering. For the high temperature paramagnetic insulating regime, the adiabatic small polaron hopping (SPH) model is found to fit well the experimental curves.
Collapse
Affiliation(s)
- Ah Dhahri
- Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, BP 1171, Université de Sfax, 3000, Tunisia.
| | | | | | | |
Collapse
|
44
|
Woo S, Jeong H, Lee SA, Seo H, Lacotte M, David A, Kim HY, Prellier W, Kim Y, Choi WS. Surface properties of atomically flat poly-crystalline SrTiO3. Sci Rep 2015; 5:8822. [PMID: 25744275 PMCID: PMC4351548 DOI: 10.1038/srep08822] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 01/28/2015] [Indexed: 11/26/2022] Open
Abstract
Comparison between single- and the poly-crystalline structures provides essential information on the role of long-range translational symmetry and grain boundaries. In particular, by comparing single- and poly-crystalline transition metal oxides (TMOs), one can study intriguing physical phenomena such as electronic and ionic conduction at the grain boundaries, phonon propagation, and various domain properties. In order to make an accurate comparison, however, both single- and poly-crystalline samples should have the same quality, e.g., stoichiometry, crystallinity, thickness, etc. Here, by studying the surface properties of atomically flat poly-crystalline SrTiO3 (STO), we propose an approach to simultaneously fabricate both single- and poly-crystalline epitaxial TMO thin films on STO substrates. In order to grow TMOs epitaxially with atomic precision, an atomically flat, single-terminated surface of the substrate is a prerequisite. We first examined (100), (110), and (111) oriented single-crystalline STO surfaces, which required different annealing conditions to achieve atomically flat surfaces, depending on the surface energy. A poly-crystalline STO surface was then prepared at the optimum condition for which all the domains with different crystallographic orientations could be successfully flattened. Based on our atomically flat poly-crystalline STO substrates, we envision expansion of the studies regarding the TMO domains and grain boundaries.
Collapse
Affiliation(s)
- Sungmin Woo
- Department of Physics, Sungkyunkwan University, Suwon. 440-746, Korea
| | - Hoidong Jeong
- Department of Physics, Sungkyunkwan University, Suwon. 440-746, Korea
| | - Sang A Lee
- 1] Department of Physics, Sungkyunkwan University, Suwon. 440-746, Korea [2] Insitute of Basic Science, Sungkyunkwan University, Suwon. 440-746, Korea
| | - Hosung Seo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon. 440-746, Korea
| | - Morgane Lacotte
- Laboratorie CRISMAT, CNRS UMR 6508, ENSICAEN, Normandie Universite, 6 Bd Marechal Juin, F-14050 Caen Cedex 4, France
| | - Adrian David
- Laboratorie CRISMAT, CNRS UMR 6508, ENSICAEN, Normandie Universite, 6 Bd Marechal Juin, F-14050 Caen Cedex 4, France
| | - Hyun You Kim
- Department of Nanomaterials Engineering, Chungnam National University, Daejeon. 305-764, Korea
| | - Wilfrid Prellier
- Laboratorie CRISMAT, CNRS UMR 6508, ENSICAEN, Normandie Universite, 6 Bd Marechal Juin, F-14050 Caen Cedex 4, France
| | - Yunseok Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon. 440-746, Korea
| | - Woo Seok Choi
- Department of Physics, Sungkyunkwan University, Suwon. 440-746, Korea
| |
Collapse
|
45
|
Ahmed AM, Abedellateef MA, Abd El-Ghanny HA, Mohamed AEMA. Enhanced low-field magnetoresistance of La 0.7Sr 0.3Mn 1-xNi xO 3compounds by annealing process. PHYSICA STATUS SOLIDI (A) 2015; 212:623-631. [DOI: 10.1002/pssa.201431556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- A. M. Ahmed
- Physics Department, Faculty of Science; Sohag University; 82524 Sohag Egypt
| | - M. A. Abedellateef
- Physics Department, Faculty of Science; Sohag University; 82524 Sohag Egypt
| | | | | |
Collapse
|
46
|
Jin Y, Cui XP, Han WH, Cao SX, Gao YZ, Zhang JC. Influence of the interface in quantum corrections on the low-temperature resistance of La2/3Sr1/3MnO3 trilayer masking thin films. Phys Chem Chem Phys 2015; 17:12826-32. [DOI: 10.1039/c5cp00842e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the low temperature resistance upturn is mainly due to the quantum correction effects driven by the weak localization and the electron–electron interaction in such a strongly correlated system, and the contribution of each factor varies with grain boundaries.
Collapse
Affiliation(s)
- Yuan Jin
- Materials Genome Institute and College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Xiao-Peng Cui
- Materials Genome Institute and College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Wei-Hua Han
- School of Physical Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
| | - Shi-Xun Cao
- Materials Genome Institute and College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Yu-Ze Gao
- Materials Genome Institute and College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Jin-Cang Zhang
- Materials Genome Institute and College of Science
- Shanghai University
- Shanghai 200444
- China
| |
Collapse
|
47
|
Das K, Satpati B, Das I. The effect of artificial grain boundaries on magneto-transport properties of charge ordered-ferromagnetic nanocomposites. RSC Adv 2015. [DOI: 10.1039/c5ra00373c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanocomposites of charge ordered insulating Pr0.67Ca0.33MnO3(PCMO) and ferromagnetic metallic La0.67Sr0.33MnO3(LSMO) nanoparticles have been prepared by chemical synthesis.
Collapse
Affiliation(s)
- Kalipada Das
- Saha Institute of Nuclear Physics
- Kolkata-700064
- India
| | - B. Satpati
- Saha Institute of Nuclear Physics
- Kolkata-700064
- India
| | - I. Das
- Saha Institute of Nuclear Physics
- Kolkata-700064
- India
| |
Collapse
|
48
|
Dwivedi GD, Kumar M, Shahi P, Barman A, Chatterjee S, Ghosh AK. Low temperature magnetic and transport properties of LSMO–PZT nanocomposites. RSC Adv 2015. [DOI: 10.1039/c5ra04101e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
(a) M–H curves of different nanocomposites (NCs) at 80 K. Left and right insets show M vs. H and dM/dH vs. H curves respectively; (b) Magneto-resistance (MR) vs. H curve of different NCs at 200 K. Inset figure shows MR vs. H curve for a typical NC at various temperatures.
Collapse
Affiliation(s)
- Gopeshwar Dhar Dwivedi
- Materials Research Laboratory
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - Manish Kumar
- Materials Research Laboratory
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - Prashant Shahi
- Department of Physics
- Indian Institute of Technology (BHU)
- Varanasi-221005
- India
| | - Anjan Barman
- Department of Material Sciences
- S.N. Bose National Centre for Basic Sciences
- Kolkata-700 098
- India
| | - Sandip Chatterjee
- Department of Physics
- Indian Institute of Technology (BHU)
- Varanasi-221005
- India
| | - Anup K. Ghosh
- Materials Research Laboratory
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| |
Collapse
|
49
|
Zhou Y, Zhu X, Li S. Effect of particle size on magnetic and electric transport properties of La0.67Sr0.33MnO3 coatings. Phys Chem Chem Phys 2015; 17:31161-9. [DOI: 10.1039/c5cp04477d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The temperature dependent resistivity data fitted through three conduction mechanisms for the LSMO samples were markedly affected by particle sizes.
Collapse
Affiliation(s)
- Yu Zhou
- School of Materials Science and Engineering
- Shandong University
- Shandong Ji'nan
- P. R. China
| | - Xinde Zhu
- School of Materials Science and Engineering
- Shandong University
- Shandong Ji'nan
- P. R. China
| | - Shengli Li
- School of Materials Science and Engineering
- Shandong University
- Shandong Ji'nan
- P. R. China
| |
Collapse
|
50
|
Shimakawa Y, Mizumaki M. Multiple magnetic interactions in A-site-ordered perovskite-structure oxides. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:473203. [PMID: 25352258 DOI: 10.1088/0953-8984/26/47/473203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Multiple magnetic interactions in A-site-ordered perovskite-structure oxides AA'3B2B'2O12 with A'-site Cu and B-site Fe ions are highlighted here. Several new compounds with this structure type were obtained by high-pressure synthesis and have been given unusual magnetic properties due to multiple interactions of Cu and Fe ions (A'-A', A'-B, A'-B', B-B, B-B', and B'-B' interactions). The magnetic interaction is discussed here in light of the results of magnetic structure analysis with neutron powder diffraction data and x-ray magnetic circular dichroism spectra obtained in x-ray absorption experiments. The characteristic structural framework with ordered cation arrangements and the variation in the oxidation state of the ions at the A' and B sites are shown to play roles crucial for the diverse and intriguing physical properties of these new compounds.
Collapse
Affiliation(s)
- Yuichi Shimakawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan. Japan Science and Technology Agency, CREST, Chiyoda-ku, Tokyo 102-0075, Japan
| | | |
Collapse
|