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	Non-Stoichiometry Effects on the Extreme Magnetoresistance in Weyl Semimetal WTe2
	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
	2018-09-01
卷号	35期号:9页码:5
ISSN号	0256-307X
DOI	10.1088/0256-307X/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.
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关键词	GIANT MAGNETORESISTANCE ; FERMI-SURFACE
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000448134000014
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
内容类型	期刊论文
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.

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