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Mechanical-electro-magnetic coupling in strained bilayer CrI3
Zhang, ShuQing1,2; Zou, XiaoLong1,2; Cheng, HuiMing1,2,3
Corresponding AuthorZou, XiaoLong(xlzou@sz.tsinghua.edu.cn)
2020-05-27
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN1674-7321
Volume63Issue:7Pages:7
AbstractThe discovery of intrinsic 2D ferromagnets provides exciting possibilities for spintronics applications. A particularly attractive example is CrI3, whose monolayer is ferromagnetic while bilayer shows antiferromagnetic coupling. Because of weak interlayer coupling, the magnetism of bilayer CrI3 can be easily modulated by external perturbations, such as gating or pressure. Here, we constructed a magnetic phase diagram of bilayer CrI3 under arbitrary biaxial strain (within +/- 4%) from compression to stretch, and found that compressive strain can effectively convert the antiferromagnetic coupling of bilayer CrI3 to ferromagnetic. Detailed analyses on electronic structure were then performed to unravel the underlying mechanism of the magnetic phase transition. It was shown that both band gap and orbital composition at conduction band minimum play important roles in determining magnetic ground states of strained bilayer CrI3. These results strengthen our understanding of the interlayer magnetism of 2D magnets and provide a feasible way to modulate the magnetism in 2D layered materials.
Keywordbilayer CrI3 magnetic coupling strain band gap orbital composition
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Shenzhen Basic Research Projects ; Guangdong Innovative and Entrepreneurial Research Team Program ; Bureau of Industry and Information Technology of Shenzhen ; Graphene Manufacturing Innovation Center Project ; China Postdoctoral Science Foundation
DOI10.1007/s11431-019-1585-8
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFB0701600] ; National Natural Science Foundation of China[11974197] ; National Natural Science Foundation of China[51920105002] ; Shenzhen Basic Research Projects[JCYJ20170407155608882] ; Guangdong Innovative and Entrepreneurial Research Team Program[2017ZT07C341] ; Bureau of Industry and Information Technology of Shenzhen ; Graphene Manufacturing Innovation Center Project[201901171523] ; China Postdoctoral Science Foundation[2018M631458]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS IDWOS:000537033400001
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138999
Collection中国科学院金属研究所
Corresponding AuthorZou, XiaoLong
Affiliation1.Tsinghua Univ, Shenzhen Geim Graphene Ctr SGC, Tsinghua Berkeley Shenzhen Inst TBSI, Shenzhen 518055, Peoples R China
2.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch TSIGS, Shenzhen 518055, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, ShuQing,Zou, XiaoLong,Cheng, HuiMing. Mechanical-electro-magnetic coupling in strained bilayer CrI3[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020,63(7):7.
APA Zhang, ShuQing,Zou, XiaoLong,&Cheng, HuiMing.(2020).Mechanical-electro-magnetic coupling in strained bilayer CrI3.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,63(7),7.
MLA Zhang, ShuQing,et al."Mechanical-electro-magnetic coupling in strained bilayer CrI3".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 63.7(2020):7.
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