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Lang R, Chen H, Zhang J, Li H, Guo D, Kou J, Zhao L, Fang Y, Wang X, Qi X, Wang YD, Ren Y, Wang H. Turning Ultra-Low Coercivity and Ultra-High Temperature Stability Within 897 K via Continuous Crystal Ordering Fluctuations. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2402162. [PMID: 38708715 DOI: 10.1002/advs.202402162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/09/2024] [Indexed: 05/07/2024]
Abstract
High-performance soft magnetic materials are important for energy conservation and emission reduction. One challenge is achieving a combination of reliable temperature stability, high resistivity, high Curie temperature, and high saturation magnetization in a single material, which often comes at the expense of intrinsic coercivity-a typical trade-off in the family of soft magnetic materials with homogeneous microstructures. Herein, a nanostructured FeCoNiSiAl complex concentrated alloy is developed through a hierarchical structure strategy. This alloy exhibits superior soft magnetic properties up to 897 K, maintaining an ultra-low intrinsic coercivity (13.6 A m-1 at 297 K) over a wide temperature range, a high resistivity (138.08 µΩ cm-1 at 297 K) and the saturation magnetization with only a 16.7% attenuation at 897 K. These unusual property combinations are attributed to the dual-magnetic-state nature with exchange softening due to continuous crystal ordering fluctuations at the atomic scale. By deliberately controlling the microstructure, the comprehensive performance of the alloy can be tuned and controlled. The research provides valuable guidance for the development of soft magnetic materials for high-temperature applications and expands the potential applications of related functional materials in the field of sustainable energy.
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Affiliation(s)
- Runqiu Lang
- National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China
| | - Haiyang Chen
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China
- Institute for Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, China
| | - Jinrong Zhang
- School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Haipeng Li
- Functional Materials Research Institute, Central Iron and Steel Research Institute, Beijing, 100081, China
| | - Defeng Guo
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
- College of Science, Yanshan University, Qinhuangdao, 066004, China
| | - Jianyuan Kou
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Lei Zhao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Metal Materials Characterization, Central Iron and Steel Research Institute, Beijing, 100081, China
| | - Yikun Fang
- Functional Materials Research Institute, Central Iron and Steel Research Institute, Beijing, 100081, China
| | - Xiaoqiang Wang
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
| | - Xiwei Qi
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
| | - Yan-Dong Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China
- Institute for Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, China
| | - Yang Ren
- Department of Physics, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Haizhou Wang
- National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Metal Materials Characterization, Central Iron and Steel Research Institute, Beijing, 100081, China
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Wei N, He L, Wu C, Lu D, Li R, Shi H, Lan H, Wen Y, He J, Long Y, Wang X, Zeng M, Fu L. Room-Temperature Magnetism in 2D MnGa 4 -H Induced by Hydrogen Insertion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210828. [PMID: 36896838 DOI: 10.1002/adma.202210828] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/01/2023] [Indexed: 05/19/2023]
Abstract
2D room-temperature magnetic materials are of great importance in future spintronic devices while only very few are reported. Herein, a plasma-enhanced chemical vapor deposition approach is exploited to construct the 2D room-temperature magnetic MnGa4 -H single crystal with a thickness down to 2.2 nm. The employment of H2 plasma makes hydrogen atoms can be easily inserted into the MnGa4 lattice to modulate the atomic distance and charge state, thereby ferrimagnetism can be achieved without destroying the structural configuration. The as-obtained 2D MnGa4 -H crystal is high-quality, air-stable, and thermo-stable, demonstrating robust and stable room-temperature magnetism with a high Curie temperature above 620 K. This work enriches the 2D room-temperature magnetic family and opens up the possibility for the development of spintronic devices based on 2D magnetic alloys.
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Affiliation(s)
- Nan Wei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Liangcheng He
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Changwei Wu
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516001, P. R. China
| | - Dabiao Lu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ruohan Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Haiwen Shi
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Haihui Lan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Yao Wen
- Key Laboratory of Artificial Micro-and Nano-structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan, 430072, P. R. China
| | - Jun He
- Key Laboratory of Artificial Micro-and Nano-structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan, 430072, P. R. China
| | - Youwen Long
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Xiao Wang
- Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Mengqi Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
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Huang C, Liao Z, Li M, Guan C, Jin F, Ye M, Zeng X, Zhang T, Chen Z, Qi Y, Gao P, Chen L. A Highly Strained Phase in PbZr 0.2Ti 0.8O 3 Films with Enhanced Ferroelectric Properties. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003582. [PMID: 33898177 PMCID: PMC8061395 DOI: 10.1002/advs.202003582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Although epitaxial strain imparted by lattice mismatch between a film and the underlying substrate has led to distinct structures and emergent functionalities, the discrete lattice parameters of limited substrates, combined with strain relaxations driven by film thickness, result in severe obstructions to subtly regulate electro-elastic coupling properties in perovskite ferroelectric films. Here a practical and universal method to achieve highly strained phases with large tetragonal distortions in Pb-based ferroelectric films through synergetic effects of moderately (≈1.0%) misfit strains and laser fluences during pulsed laser deposition process is demonstrated. The phase possesses unexpectedly large Poisson's ratio and negative thermal expansion, and concomitant enhancements of spontaneous polarization (≈100 µC cm-2) and Curie temperature (≈800 °C), 40% and 75% larger than that of bulk counterparts, respectively. This strategy efficiently circumvents the long-standing issue of limited numbers of discrete substrates and enables continuous regulations of exploitable lattice states in functional oxide films with tightly elastic coupled performances beyond their present levels.
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Affiliation(s)
- Chuanwei Huang
- Shenzhen Key Laboratory of Special Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518060China
| | - Zhaolong Liao
- Shenzhen Key Laboratory of Special Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518060China
| | - Mingqiang Li
- Electron Microscopy Laboratory, and International Center for Quantum MaterialsSchool of PhysicsPeking UniversityBeijing100871China
| | - Changxin Guan
- Shenzhen Key Laboratory of Special Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518060China
- Department of PhysicsSouthern University of Science and TechnologyShenzhenGuangdong518055China
- Department of Materials Science and EngineeringHubei UniversityWuhan430062China
| | - Fei Jin
- Shenzhen Key Laboratory of Special Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518060China
| | - Mao Ye
- Department of PhysicsSouthern University of Science and TechnologyShenzhenGuangdong518055China
| | - Xierong Zeng
- Shenzhen Key Laboratory of Special Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518060China
| | - Tianjin Zhang
- Department of Materials Science and EngineeringHubei UniversityWuhan430062China
| | - Zuhuang Chen
- School of Materials Science and EngineeringHarbin Institute of TechnologyShenzhen518055China
| | - Yajun Qi
- Department of Materials Science and EngineeringHubei UniversityWuhan430062China
| | - Peng Gao
- Electron Microscopy Laboratory, and International Center for Quantum MaterialsSchool of PhysicsPeking UniversityBeijing100871China
| | - Lang Chen
- Department of PhysicsSouthern University of Science and TechnologyShenzhenGuangdong518055China
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Zhang Z, Wu H, Sang L, Takahashi Y, Huang J, Wang L, Toda M, Akita IM, Koide Y, Koizumi S, Liao M. Enhancing Delta E Effect at High Temperatures of Galfenol/Ti/Single-Crystal Diamond Resonators for Magnetic Sensing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23155-23164. [PMID: 32336083 DOI: 10.1021/acsami.0c06593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A conventional wisdom is that the sensing properties of magnetic sensors at high temperatures will be degraded due to the materials' deterioration. Here, the concept of high-temperature enhancing magnetic sensing is proposed based on the hybrid structure of SCD MEMS resonator functionalized with a high thermal-stable ferromagnetic galfenol (FeGa) film. The delta E effect of the magnetostrictive FeGa thin film on Ti/SCD cantilevers is investigated by varying the operating temperature from 300 to 773 K upon external magnetic fields. The multilayer structure magnetic sensor presents a high sensitivity of 71.1 Hz/mT and a low noise level of 10 nT/√Hz at 773 K for frequencies higher than 7.5 kHz. The high-temperature magnetic sensing performance exceeds those of the reported magnetic sensors. Furthermore, an anomalous behavior is observed on the delta E effect, which exhibits a positive temperature dependence with the law of Tn. Based on the resonance frequency shift of the FeGa/Ti/SCD cantilever, the strain coupling in the multilayers of the FeGa/Ti/SCD structure under a magnetic field is strengthened with increasing temperature. The delta E effect shows a strong relationship with the azimuthal angle, θ, as a sine function at 300 and 773 K. This work provides a strategy to develop magnetic sensors for high-temperature applications with performance superior to that of the present ones.
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Affiliation(s)
- Zilong Zhang
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Haihua Wu
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Liwen Sang
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Yukiko Takahashi
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Jian Huang
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Linjun Wang
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Masaya Toda
- Graduate School of Engineering, Tohoku University, Sendai, Miyagi 9808579, Japan
| | | | - Yasuo Koide
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Satoshi Koizumi
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Meiyong Liao
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
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Balagurov AM, Samoylova NY, Bobrikov IA, Sumnikov SV, Golovin IS. The first- and second-order isothermal phase transitions in Fe 3Ga-type compounds. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:1024-1033. [PMID: 32830682 DOI: 10.1107/s2052520619013106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 09/23/2019] [Indexed: 06/11/2023]
Abstract
Structural features and kinetics of the transition between ordered metastable b.c.c.-derived D03 and equilibrium f.c.c.-derived L12 phases of Fe-xGa alloys (x = 27.2% and 28.0%) have been analyzed by in situ real-time neutron diffraction during isothermal annealing in the temperature range 405-470°C. It has been revealed that the transition proceeds with alternation of the first- and second-order phase transformations according to a D03 → A2 → A1 → L12 scheme, where A2 and A1 are disordered b.c.c. and f.c.c. structures. Deformations of the crystal lattice that arise due to these transitions are determined. The kinetics of the L12 phase nucleation and growth were analyzed in the frame of the Johnson-Mehl-Avrami-Kolmogorov (JMAK) model; however, only the early stage of the D03 → L12 transition is well described by the JMAK equation. The value of the Avrami exponent corresponds to the constant growth rate of the new L12 phase and decreasing nucleation rate in the Fe-27.2Ga alloy and indicates the presence of pre-existing nucleation centres of the L12 phase in the Fe-28.0Ga alloy.
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Affiliation(s)
- Anatoly M Balagurov
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna 141980, Russian Federation
| | - Nataliya Yu Samoylova
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna 141980, Russian Federation
| | - Ivan A Bobrikov
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna 141980, Russian Federation
| | - Sergey V Sumnikov
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna 141980, Russian Federation
| | - Igor S Golovin
- National University of Science and Technology MISIS, Leninskiy prospekt 2, Moscow 119049, Russian Federation
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