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Room temperature ferromagnetism in ultra-thin van der Waals crystals of 1T-CrTe2

文献类型：期刊论文

作者Sun, Xingdan5,6; Li, Wanying5,6; Wang, Xiao3,4,9; Sui, Qi8; Zhang, Tongyao1,7; Wang, Zhi5,6; Liu, Long5,6; Li, Da5,6; Feng, Shun5,6,11; Zhong, Siyu10
刊名NANO RESEARCH
出版日期2020-08-29
页码6
关键词room temperature ferromagnetism two dimensional (2D) CrTe2 anisotropic magnetoresistance (AMR)
ISSN号1998-0124
DOI10.1007/s12274-020-3021-4
通讯作者Yang, Teng(yangteng@imr.ac.cn) ; Yu, Guoqiang(guoqiangyu@iphy.ac.cn) ; Wang, Bingwu(wangbw@pku.edu.cn) ; Han, Zheng(vitto.han@gmail.com)
英文摘要Although many emerging new phenomena have been unraveled in two dimensional (2D) materials with long-range spin orderings, the usually low critical temperature in van der Waals (vdW) magnetic material has thus far hindered the related practical applications. Here, we show that ferromagnetism can hold above 300 K in a metallic phase of 1T-CrTe(2)down to the ultra-thin limit. It thus makes CrTe(2)so far the only known exfoliated ultra-thin vdW magnets with intrinsic long-range magnetic ordering above room temperature. An in-plane room-temperature negative anisotropic magnetoresistance (AMR) was obtained in ultra-thin CrTe(2)devices, with a sign change in the AMR at lower temperature, with -0.6% and +5% at 300 and 10 K, respectively. Our findings provide insights into magnetism in ultra-thin CrTe2, expanding the vdW crystals toolbox for future room-temperature spintronic applications.
资助项目National Key R&D Program of China[2019YFA0307800] ; National Key R&D Program of China[2017YFA0206302] ; National Key R&D Program of China[2017YFA0206200] ; National Natural Science Foundation of China (NSFC)[11974357] ; National Natural Science Foundation of China (NSFC)[U1932151] ; National Natural Science Foundation of China (NSFC)[51627801] ; National Natural Science Foundation of China (NSFC)[11874409] ; National Natural Science Foundation of China (NSFC)[61574060] ; National Natural Science Foundation of China (NSFC)[8206300210] ; Major Program of Aerospace Advanced Manufacturing Technology Research Foundation NSFC[U1537204] ; CASC, China[U1537204] ; State Key Laboratory of Quantum Optics and Quantum Optics Devices[KF201816]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000563729000002
出版者TSINGHUA UNIV PRESS
资助机构National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Major Program of Aerospace Advanced Manufacturing Technology Research Foundation NSFC ; CASC, China ; State Key Laboratory of Quantum Optics and Quantum Optics Devices
源URL[http://ir.imr.ac.cn/handle/321006/140366]  
专题金属研究所_中国科学院金属研究所
通讯作者Yang, Teng; Yu, Guoqiang; Wang, Bingwu; Han, Zheng
作者单位1.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
2.Univ Grenoble Alpes, CNRS, Grenoble INP, Inst Neel, F-38000 Grenoble, France
3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
5.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
6.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
7.Shanxi Univ, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
8.Peking Univ, Coll Chem & Mol Engn, Beijing Key Lab Magnetoelect Mat & Devices, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
9.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
10.East China Normal Univ, Dept Elect Engn, Shanghai Key Lab Multidimens Informat Proc, 500 Dongchuan Rd, Shanghai 200241, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Xingdan,Li, Wanying,Wang, Xiao,et al. Room temperature ferromagnetism in ultra-thin van der Waals crystals of 1T-CrTe2[J]. NANO RESEARCH,2020:6.
APA Sun, Xingdan.,Li, Wanying.,Wang, Xiao.,Sui, Qi.,Zhang, Tongyao.,...&Zhang, Zhidong.(2020).Room temperature ferromagnetism in ultra-thin van der Waals crystals of 1T-CrTe2.NANO RESEARCH,6.
MLA Sun, Xingdan,et al."Room temperature ferromagnetism in ultra-thin van der Waals crystals of 1T-CrTe2".NANO RESEARCH (2020):6.

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来源：金属研究所

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