Mechanical-electro-magnetic coupling in strained bilayer CrI3

doi:10.1007/s11431-019-1585-8

IMR OpenIR

	Mechanical-electro-magnetic coupling in strained bilayer CrI3
	Zhang, ShuQing 1,2; Zou, XiaoLong 1,2; Cheng, HuiMing 1,2,3
通讯作者	Zou, XiaoLong(xlzou@sz.tsinghua.edu.cn)
	2020-05-27
发表期刊	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN	1674-7321
卷号	63 期号:7 页码:7
摘要	The 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.
关键词	bilayer CrI3 magnetic coupling strain band gap orbital composition
资助者	National 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
DOI	10.1007/s11431-019-1585-8
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS记录号	WOS:000537033400001
出版者	SCIENCE PRESS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138999
专题	中国科学院金属研究所
通讯作者	Zou, XiaoLong
作者单位	1.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
推荐引用方式 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.