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Emergent, Non-Aging, Extendable, and Rechargeable Exchange Bias in 2D Fe3GeTe2 Homostructures Induced by Moderate Pressuring

文献类型：期刊论文

作者Liu, Caixing2,3; Zhang, Huisheng4; Zhang, Shunhong3; Hou, De2; Liu, Yonglai2; Wu, Hanqing3; Jiang, Zhongzhu5; Wang, HuaiXiang1; Ma, Zongwei2; Luo, Xuan5
刊名ADVANCED MATERIALS
出版日期2022-11-18
ISSN号0935-9648
关键词2D magnets exchange bias Fe3GeTe2 training effect van der Waals homostructures
DOI10.1002/adma.202203411
通讯作者Zhang, Zhenyu(zhangzy@ustc.edu.cn) ; Sheng, Zhigao(zhigaosheng@hmfl.ac.cn)
英文摘要As a crucial concept in magnetism and spintronics, exchange bias (ExB) measures the asymmetry in the hysteresis loop of a pinned ferromagnet (FM)/antiferromagnet (AFM) interface. Previous studies are mainly focused on FM/AFM heterostructures composed of conventional bulk materials, whose complex interfaces prohibit precise control and full understanding of the phenomenon. Here, the enabling power of 2D magnets is exploited to demonstrate the emergence, non-aging, extendability, and rechargeability of ExB in van der Waals Fe3GeTe2 homostructures, upon moderate pressuring. The emergence of the ExB is attributed to a local stress-induced FM-to-AFM transition, as validated using first-principles calculations, and confirmed in magneto-optical Kerr effect and second harmonic generation measurements. It is also observed that, negligible ExB aging before the training effect suddenly takes place through avalanching, pronounced delay of the avalanche via timed pressure repetition (extendability), ExB recovery in the post-training sample upon refreshed pressuring (rechargeability), and demonstrate its versatile tunability. These striking findings offer unprecedented insights into the underlying principles of ExB and its training, with immense technological applications in sight.
WOS关键词MAGNETISM ; FERROMAGNETISM ; CRYSTAL
资助项目National Key R&D Program of China[2021YFA1600200] ; National Key R&D Program of China[2017YFA0303603] ; National Key R&D Program of China[2017YFA0303500] ; National Key R&D Program of China[2017YFB0405703] ; National Natural Science Foundation of China (NSFC)[U2032218] ; National Natural Science Foundation of China (NSFC)[11904350] ; National Natural Science Foundation of China (NSFC)[11634011] ; National Natural Science Foundation of China (NSFC)[11974323] ; National Natural Science Foundation of China (NSFC)[11722435] ; National Natural Science Foundation of China (NSFC)[11804210] ; National Natural Science Foundation of China (NSFC)[11904367] ; National Natural Science Foundation of China (NSFC)[51871137] ; Plan for Major Provincial Science & Technology Project[202003a05020018] ; Key Research Program of Frontier Sciences, CAS[QYZDBSSW-SLH011] ; Users with Excellence Program of Hefei Science Center CAS[2021HSC-UE009] ; President's fund of Hefei Research Institute[YZJJ2022QN37] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30000000] ; Anhui Initiative in Quantum Information Technologies[AHY170000] ; Anhui Provincial Natural Science Foundation[2008085QA30] ; Anhui Provincial Natural Science Foundation[2008085QA44] ; High Magnetic Field Laboratory of Anhui Province
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000888933100001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Plan for Major Provincial Science & Technology Project ; Key Research Program of Frontier Sciences, CAS ; Users with Excellence Program of Hefei Science Center CAS ; President's fund of Hefei Research Institute ; Strategic Priority Research Program of Chinese Academy of Sciences ; Anhui Initiative in Quantum Information Technologies ; Anhui Provincial Natural Science Foundation ; High Magnetic Field Laboratory of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131715]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Zhenyu; Sheng, Zhigao
作者单位1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Key Lab Condensed Matter Phys Extreme Condit, High Magnet Field Lab, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Int Ctr Quantum Design Funct Mat ICQD, Hefei 230026, Peoples R China
4.Shanxi Normal Univ, Res Inst Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ, Taiyuan 030000, Peoples R China
5.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Mat Phys, Hefei 230031, Peoples R China
6.Chinese Acad Sci, Key Lab Photovolta Mat & Energy Conservat, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Caixing,Zhang, Huisheng,Zhang, Shunhong,et al. Emergent, Non-Aging, Extendable, and Rechargeable Exchange Bias in 2D Fe3GeTe2 Homostructures Induced by Moderate Pressuring[J]. ADVANCED MATERIALS,2022.
APA Liu, Caixing.,Zhang, Huisheng.,Zhang, Shunhong.,Hou, De.,Liu, Yonglai.,...&Sheng, Zhigao.(2022).Emergent, Non-Aging, Extendable, and Rechargeable Exchange Bias in 2D Fe3GeTe2 Homostructures Induced by Moderate Pressuring.ADVANCED MATERIALS.
MLA Liu, Caixing,et al."Emergent, Non-Aging, Extendable, and Rechargeable Exchange Bias in 2D Fe3GeTe2 Homostructures Induced by Moderate Pressuring".ADVANCED MATERIALS (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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