Colossal angular magnetoresistance in the antiferromagnetic semiconductor EuTe2

doi:10.1103/PhysRevB.104.214419

	Colossal angular magnetoresistance in the antiferromagnetic semiconductor EuTe2
	Yang, Huali 5,6; Liu, Qing 4,5,6,9; Liao, Zhaoliang 7; Si, Liang 5; Jiang, Peiheng 5; Liu, Xiaolei 1; Guo, Yanfeng 1; Yin, Junjie 10; Wang, Meng 3,10; Sheng, Zhigao 2,11
刊名	PHYSICAL REVIEW B
	2021-12-14
卷号	104
ISSN号	2469-9950
DOI	10.1103/PhysRevB.104.214419
通讯作者	Zhong, Zhicheng(zhong@nimte.ac.cn)
英文摘要	With a surge of interest in antiferromagnetic (AFM) spintronics, the manipulation and detection of different AFM states has become a topic of concern. In particular, a large magnetoresistive response is of critical importance for facilitating the readout of AFM states. Here, we report the observation of colossal angular magnetoresistance (AMR) in a layered AFM rare-earth dichalcogenide, EuTe2. The AMR reaches -40 000% at 2 K and 22 kOe, which is approximately four orders of magnitude larger than in AFM metals and alloys. Combined magnetization, resistivity, and theoretical analysis reveal strong coupling of the electronic state (metal vs insulator) to the vector spins, which mainly arises from the space-time inversion symmetry-broken correlated band reconstruction. Consequently, the anisotropic magnetization response to the vector magnetic field induces metal-insulator transition (MIT) and a large anisotropic magnetotransport that explains the experimental findings very well. These results suggest an avenue for exploring the spin configuration dependent transport properties for unique AFM spintronic devices.
资助项目	National Key R&D Program of China[2019YFA0705700] ; National Key R&D Program of China[2016YFA0201102] ; National Key R&D Program of China[2017YFA0303602] ; National Nature Science Foundation of China[11904414] ; National Nature Science Foundation of China[51525103] ; National Nature Science Foundation of China[51931011] ; National Nature Science Foundation of China[11774360] ; National Nature Science Foundation of China[51701231] ; National Nature Science Foundation of China[11904373] ; National Nature Science Foundation of China[11874264] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-SLH008] ; Nature Science Foundation of China[11974325] ; Natural Science Foundation of Guangdong[2018A030313055]
WOS关键词	ELECTRONIC-STRUCTURE CALCULATIONS ; TOTAL-ENERGY CALCULATIONS ; ANISOTROPIC MAGNETORESISTANCE ; MEMORY
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000753770800003
资助机构	National Key R&D Program of China ; National Nature Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Nature Science Foundation of China ; Natural Science Foundation of Guangdong
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127612]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhong, Zhicheng
作者单位	1.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, High Field Magnet Lab, Anhui Key Lab Condensed Matter Phys Extreme Cond, Hefei 230031, Peoples R China 3.Sun Yat Sen Univ, Sch Phys, Guangzhou 510275, Peoples R China 4.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 5.Chinese Acad Sci, CAS Key Lab Magnet Mat & Devices, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China 6.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China 7.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China 8.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 9.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China 10.Sun Yat Sen Univ, Sch Phys, Guangzhou 510275, Peoples R China
推荐引用方式 GB/T 7714	Yang, Huali,Liu, Qing,Liao, Zhaoliang,et al. Colossal angular magnetoresistance in the antiferromagnetic semiconductor EuTe2[J]. PHYSICAL REVIEW B,2021,104.
APA	Yang, Huali.,Liu, Qing.,Liao, Zhaoliang.,Si, Liang.,Jiang, Peiheng.,...&Li, Run-Wei.(2021).Colossal angular magnetoresistance in the antiferromagnetic semiconductor EuTe2.PHYSICAL REVIEW B,104.
MLA	Yang, Huali,et al."Colossal angular magnetoresistance in the antiferromagnetic semiconductor EuTe2".PHYSICAL REVIEW B 104(2021).