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Non-Stoichiometry Effects on the Extreme Magnetoresistance in Weyl Semimetal WTe2

文献类型：期刊论文

作者Gong, Ji-Xiang1,2; Yang, Jun1; Ge, Min2; Wang, Yong-Jian1; Liang, Dan-Dan1; Luo, Lei1; Yan, Xiu1; Zhen, Wei-Li1; Weng, Shi-Rui1; Pi, Li1,2
刊名CHINESE PHYSICS LETTERS
出版日期2018-09-01
卷号35期号:9页码:5
ISSN号0256-307X
DOI10.1088/0256-307X/35/9/097101
通讯作者Ge, Min(gemin@mail.ustc.edu.cn) ; Zhang, Chang-Jin(zhangcj@hmfl.ac.cn) ; Zhu, Wen-Ka(wkzhu@hmfl.ac.cn)
英文摘要Non-stoichiometry effect on the extreme magnetoresistance is systematically investigated for the Weyl semimetal WTe2. Magnetoresistance and Hall resistivity are measured for the as-grown samples with a slight difference in Te vacancies and the annealed samples with increased Te vacancies. The fits to a two-band model show that the magnetoresistance is strongly dependent on the residual resistivity ratio (i.e., the degree of non-stoichiometry), which is eventually understood in terms of electron doping that not only breaks the balance between electron-type and hole-type carrier densities, but also reduces the average carrier mobility. Thus the compensation effect and ultrahigh mobility are probably the main driving force of the extreme magnetoresistance in WTe2.
WOS关键词GIANT MAGNETORESISTANCE ; FERMI-SURFACE
资助项目National Key R&D Program of China[2016YFA0300404] ; National Key R&D Program of China[2017YFA0403600] ; National Natural Science Foundation of China[51603207] ; National Natural Science Foundation of China[U1532267] ; National Natural Science Foundation of China[11574288] ; National Natural Science Foundation of China[11674327] ; Natural Science Foundation of Anhui Province[1708085MA08]
WOS研究方向Physics
语种英语
WOS记录号WOS:000448134000014
出版者IOP PUBLISHING LTD
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39525]  
专题合肥物质科学研究院_中科院强磁场科学中心
通讯作者Ge, Min; Zhang, Chang-Jin; Zhu, Wen-Ka
作者单位1.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Gong, Ji-Xiang,Yang, Jun,Ge, Min,et al. Non-Stoichiometry Effects on the Extreme Magnetoresistance in Weyl Semimetal WTe2[J]. CHINESE PHYSICS LETTERS,2018,35(9):5.
APA Gong, Ji-Xiang.,Yang, Jun.,Ge, Min.,Wang, Yong-Jian.,Liang, Dan-Dan.,...&Zhu, Wen-Ka.(2018).Non-Stoichiometry Effects on the Extreme Magnetoresistance in Weyl Semimetal WTe2.CHINESE PHYSICS LETTERS,35(9),5.
MLA Gong, Ji-Xiang,et al."Non-Stoichiometry Effects on the Extreme Magnetoresistance in Weyl Semimetal WTe2".CHINESE PHYSICS LETTERS 35.9(2018):5.

入库方式： OAI收割

来源：合肥物质科学研究院

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