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Abdullah D, Gupta DC. Exploring the half-metallic ferromagnetism, dynamical and mechanical stability, optoelectronic and thermoelectric properties of K 2NaMI 6 (M = Mn, Co, Ni) for spintronic applications. Sci Rep 2023; 13:12795. [PMID: 37550338 PMCID: PMC10406917 DOI: 10.1038/s41598-023-39230-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/21/2023] [Indexed: 08/09/2023] Open
Abstract
The structural stability, optoelectronic and magnetic characteristics of K2NaMI6 (M = Mn, Co, and Ni) halide double perovskites have been demonstrated to be explained using density functional theory computations. The prominent generalized gradient approximation and integration of the mBJ potential are implemented to estimate the exchange-correlation potential, which is the only unidentified parameter in the state-of-the-art formulism. The structural optimization, mechanical stability criteria, and tolerance factor demonstrate the reliability of the double perovskites in a cubic structure with Fm3m symmetry. The elastic constants facilitated mechanical stability and revealed the brittle nature of these double perovskites. The spin-polarized electronic band profile and the behaviour of the dielectric constant and absorption coefficient in the spin-up and down channels show the presence of half-metallic nature in these materials. Additionally, we examined magnetism and the genesis of the half-metallic gap in this article. The half-metallic and magnetic properties are attributed to the unpaired electrons in the split d-orbitals of the M-sited elements in the crystal field. The Mn-, Co-, and Ni-based double perovskites were found to possess total magnetic moments of 4 μB, 4 μB, and 1 μB, respectively, with the transition metal atoms comprising up the majority of this magnetic moment. The Fermi level's perfect spin polarisation promotes the potential application of double perovskites in spintronic technology.
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Affiliation(s)
- Danish Abdullah
- Condensed Matter Theory Group, School of Studies in Physics, Jiwaji University, Gwalior, 474011, India.
| | - Dinesh C Gupta
- Condensed Matter Theory Group, School of Studies in Physics, Jiwaji University, Gwalior, 474011, India.
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2
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Alam M, Chatterjee S. B-site order/disorder in A 2BB'O 6and its correlation with their magnetic property. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 35:223001. [PMID: 36888997 DOI: 10.1088/1361-648x/acc295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
The disorder in any system affects their physical behavior. In this scenario, we report the possibility of disorder in A2BB'O6oxides and their effect on different magnetic properties. These systems show anti-site disorder by interchanging B and B' elements from their ordered position and giving rise to an anti-phase boundary. The presence of disorder leads to a reduction in saturationMand magnetic transition temperature. The disorder prevents the system from sharp magnetic transition which originates short-range clustered phase (or Griffiths phase) in the paramagnetic region just above the long-range magnetic transition temperature. Further, we report that the presence of anti-site disorder and anti-phase boundary in A2BB'O6oxides give different interesting magnetic phases like metamagnetic transition, spin-glass, exchange bias, magnetocaloric effect, magnetodielectric, magnetoresistance, spin-phonon coupling, etc.
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Affiliation(s)
- Mohd Alam
- Department of Physics, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Sandip Chatterjee
- Department of Physics, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
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McGuire SC, Wesley W, Sasaki K, Tong X, Wong SS. Yttrium-based Double Perovskite Nanorods for Electrocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30914-30926. [PMID: 35759361 DOI: 10.1021/acsami.2c07377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Herein, we investigate the effect of the chemical composition of double perovskite nanorods on their versatile electrocatalytic activity not only as supports for the oxidation of small organic molecules but also as catalysts for the oxygen evolution reaction. Specifically, Y2CoMnO6 and Y2NiMnO6 nanorods with average diameters of 300 nm were prepared by a two-step hydrothermal method, in which the individual effects of synthetic parameters, such as the pH, annealing temperature, and precursor ratios on both the composition and morphology, were systematically investigated. When used as supports for Pt nanoparticles, Y2CoMnO6/Pt catalysts exhibited an electrocatalytic activity for the methanol oxidation reaction, which is 2.1 and 1.3 times higher than that measured for commercial Pt/C and Y2NiMnO6/Pt, respectively. Similarly, the Co-based catalyst support material displayed an ethanol oxidation activity, which is 2.3 times higher than both Pt/C and Y2NiMnO6/Pt. This clear enhancement in the activity for Y2CoMnO6 can largely be attributed to strong metal-support interactions, as evidenced by a downshift in the binding energy of the Pt 4f bands, measured by X-ray photoelectron spectroscopy (XPS), which is often correlated not only with a downshift in the d-band center but also to a decreased adsorption of poisoning adsorbates. Moreover, when used as catalysts for the oxygen evolution reaction, Y2CoMnO6 displayed a much greater activity as compared with Y2NiMnO6. This behavior can largely be attributed not only to a preponderance of comparatively more favorable oxidation states and electronic configurations but also to the formation of an active layer on the surface of the Y2CoMnO6 catalyst, which collectively gives rise to improved performance metrics and greater stability as compared with both IrO2 and Y2NiMnO6. Overall, these results highlight the importance of both the chemical composition and the electronic structure of double perovskites, especially when utilized in multifunctional roles as either supports or catalysts.
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Affiliation(s)
- Scott C McGuire
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Weiqiao Wesley
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Kotaro Sasaki
- Chemistry Division, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
| | - Xiao Tong
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Building 735, Upton, New York 11973, United States
| | - Stanislaus S Wong
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
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LnFe0.5Cr0.5O3 based perovskites showing multiferroic properties and polarization induced photoelectrochemical activity. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Zhang J, Wu S, Shan Y, Guo J, Yan S, Xiao S, Yang C, Shen J, Chen J, Liu L, Wu X. Distorted Monolayer ReS 2 with Low-Magnetic-Field Controlled Magnetoelectricity. ACS NANO 2019; 13:2334-2340. [PMID: 30735355 DOI: 10.1021/acsnano.8b09058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two dimensional (2D) materials possessing ferroelectric/ferromagnetic orders and especially low-magnetic-field controlled magnetoelectricity have great promise in spintronics and multistate data storage. However, ferroelectric and magnetoelectric (ME) dipoles in the atom-thick 2D materials are difficult to be realized due to structural inversion symmetry, thermal actuation, and depolarized field. To overcome these difficulties, the monolayer structure must possess an in-plane inversion asymmetry in order to provide out-of-plane ferroelectric polarization. Herein, crystal chemistry is adopted to engineer specific atomic displacement in monolayer ReS2 to change the crystal symmetry to induce out-of-plane ferroelectric polarization at room temperature. The cationic Re vacancy in the atom-displaced ReS2 monolayer causes spin polarization of two immediate neighbor sulfur atoms to generate magnetic ordering, and the ferroelectric distortion near the Re vacancy locally tunes the ferromagnetic order thereby triggering low-magnetic-field controlled ME polarization at about 28 K. As a result, 2D ME coupling multiferroics is achieved. Our results not only reveal a design methodology to attain coexistence of ferroelectric and ferromagnetic orders in 2D materials but also provide insights into magnetoelectricity in 2D materials.
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Affiliation(s)
- Jinlei Zhang
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Shuyi Wu
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Yun Shan
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
- China Key Laboratory of Advanced Functional Materials of Nanjing , Nanjing Xiaozhuang University , Nanjing 210093 , P.R. China
| | - JunHong Guo
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
- School of Optoelectronic Engineering and Grüenberg Research Centre , Nanjing University of Posts and Telecommunications , Nanjing 210093 , P.R. China
| | - Shuo Yan
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Shuyu Xiao
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Chunbing Yang
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Jiancang Shen
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Jian Chen
- Research Institute of Superconductor Electronics , Nanjing University , Nanjing 210093 , P.R. China
| | - Lizhe Liu
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
| | - Xinglong Wu
- National Laboratory of Solid State Microstructures and Department of Physics , Nanjing University , Nanjing 210093 , P.R. China
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Das N, Singh S, Joshi AG, Thirumal M, Reddy VR, Gupta LC, Ganguli AK. Pr 2FeCrO 6: A Type I Multiferroic. Inorg Chem 2017; 56:12712-12718. [PMID: 28984458 DOI: 10.1021/acs.inorgchem.7b01086] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We synthesized double perovskite Pr2FeCrO6 by solid-state method. Analysis of its X-ray powder diffraction shows that the compound crystallizes in a centrosymmetric structure with space group Pbnm. Our X-ray photoelectron spectroscopy (XPS) studies show that all the cations are present in +3 oxidation state. Magnetization studies of Pr2FeCrO6 show that the material is paramagnetic at room temperature and undergoes a magnetic transition below TCM = 250 K. We observe clear magnetic hysteresis loop, for example, below 150 K. A low remnant magnetization Mr, ∼0.05 μB/f. u., is inferred from the observed magnetic hysteresis loop. 57Fe Mössbauer study at 25 K shows a high hyperfine magnetic field of ∼53 T at the Fe nucleus, which corresponds to a magnetic moment of ∼6-7 μB/Fe. These two results together suggest a ferrimagnetic (nearly compensated or canted) ordering of the Fe moments. Mössbauer studies close to the ferrimagnetic ordering temperature suggest interesting magnetic relaxation effects. A dielectric anomaly observed at TCE = 453 K signals a ferroelectric ↔ paraelectric phase transition. We observe at room temperature a clear and well-defined ferroelectric hysteresis loop, PS = 1.04 μC/cm2, establishing ferroelectricity in the material. From these results, we conclude that Pr2FeCrO6 is a type I multiferroic (TCE > TCM).
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Affiliation(s)
- Nibedita Das
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
| | - Satyendra Singh
- Centre for Nano Science, Jawaharlal Nehru University , New Delhi 110067, India
| | - Amish G Joshi
- CSIR National Physical Laboratory , Dr. K. S. Krishnan Road, New Delhi 110012, India
| | | | | | - Laxmi Chand Gupta
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
| | - Ashok Kumar Ganguli
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India.,Institute of Nano Science and Technology , Sector 24, Mohali, Punjab 160062, India
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Single Crystal Growth of Multiferroic Double Perovskites: Yb2CoMnO6 and Lu2CoMnO6. CRYSTALS 2017. [DOI: 10.3390/cryst7030067] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dey K, Indra A, De D, Majumdar S, Giri S. Magnetoelectric Coupling, Ferroelectricity, and Magnetic Memory Effect in Double Perovskite La3Ni2NbO9. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12901-12907. [PMID: 27136317 DOI: 10.1021/acsami.6b02990] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We observe ferroelectricity in an almost unexplored double perovskite La3Ni2NbO9. Ferroelectricity appears below ∼60 K, which is found to be correlated with the significant magnetostriction. A reasonably large value of spontaneous electric polarization is recorded to be ∼260 μC/m(2) at 10 K for E = 5 kV/cm, which decreases signifi- cantly upon application of a magnetic field (H), suggesting considerable magnetoelectric coupling. The dielectric permittivity is also influenced by H below the ferroelectric transition. The magnetodielectric response scales linearly to the squared magnetization, as described by the Ginzburg-Landau theory. Meticulous studies of static and dynamic features of dc magnetization and frequency dependent ac susceptibility results suggest spin-glass state below 29 K. Intrinsic magnetic memory effect is observed from zero-field cooled magnetization and isothermal remanent magnetization studies, also pointing spin-glass state below 29 K. Appearance of ferroelectricity together with a significant magnetoelectric coupling in absence of conventional long-range magnetic order is promising for searching new magnetoelectric materials.
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Affiliation(s)
- K Dey
- Department of Solid State Physics, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - A Indra
- Department of Solid State Physics, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - D De
- Department of Solid State Physics, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
- Department of Physics, The Neotia University , D. H. Road, 24 PGS(S), Sarisha, West Bengal 743368, India
| | - S Majumdar
- Department of Solid State Physics, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - S Giri
- Department of Solid State Physics, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
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Alam M, Karmakar K, Pal M, Mandal K. Electrochemical supercapacitor based on double perovskite Y2NiMnO6 nanowires. RSC Adv 2016. [DOI: 10.1039/c6ra23318j] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present work unveils the electrochemical properties of a newly emerging multiferroic material, double perovskite Y2NiMnO6, as an active material for the positive electrode of electrochemical supercapacitors.
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Affiliation(s)
- Mahebub Alam
- S. N. Bose National Centre for Basic Sciences
- Kolkata-700106
- India
| | - Keshab Karmakar
- S. N. Bose National Centre for Basic Sciences
- Kolkata-700106
- India
| | - Monalisa Pal
- S. N. Bose National Centre for Basic Sciences
- Kolkata-700106
- India
| | - Kalyan Mandal
- S. N. Bose National Centre for Basic Sciences
- Kolkata-700106
- India
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Alam M, Mandal K, Khan GG. Double perovskite Y2NiMnO6 nanowires: high temperature ferromagnetic–ferroelectric multiferroic. RSC Adv 2016. [DOI: 10.1039/c6ra10861j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Y2NiMnO6 NWs exhibited room temperature ferroelectricity and ferromagnetism because of surface spins and surface polarization of the electron, respectively.
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Affiliation(s)
- Mahebub Alam
- Department of Condensed Matter Physics and Material Science
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Kalyan Mandal
- Department of Condensed Matter Physics and Material Science
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Gobinda Gopal Khan
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Technology Campus
- Kolkata 700098
- India
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Yi W, Princep AJ, Guo Y, Johnson RD, Khalyavin D, Manuel P, Senyshyn A, Presniakov IA, Sobolev AV, Matsushita Y, Tanaka M, Belik AA, Boothroyd AT. Sc2NiMnO6: A Double-Perovskite with a Magnetodielectric Response Driven by Multiple Magnetic Orders. Inorg Chem 2015; 54:8012-21. [DOI: 10.1021/acs.inorgchem.5b01195] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Yi
- International Center for Materials Nanoarchitectonics
(WPI-MANA), National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
- Institute of Physics and Beijing National Laboratory
for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Andrew J. Princep
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - Yanfeng Guo
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - Roger D. Johnson
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - Dmitry Khalyavin
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom
| | - Pascal Manuel
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom
| | | | - Igor A. Presniakov
- Department
of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119992 Moscow, Russia
| | - Alexey V. Sobolev
- Department
of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119992 Moscow, Russia
| | - Yoshitaka Matsushita
- Synchrotron
X-ray Station at SPring-8, NIMS, Kohto
1-1-1, Sayo-cho, Hyogo 679-5148, Japan
| | - Masahiko Tanaka
- Synchrotron
X-ray Station at SPring-8, NIMS, Kohto
1-1-1, Sayo-cho, Hyogo 679-5148, Japan
| | - Alexei A. Belik
- International Center for Materials Nanoarchitectonics
(WPI-MANA), National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Andrew T. Boothroyd
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, United Kingdom
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