Doping-enhanced robustness of anomaly-related magnetoresistance in WTe2±α flakes

doi:10.1088/1674-1056/acb423

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	Doping-enhanced robustness of anomaly-related magnetoresistance in WTe2±α flakes
	J. C. Meng, X. X. Chen, T. N. Shao, M. R. Liu, W. M. Jiang, Z. T. Zhang, C. M. Xiong, R. F. Dou and J. C. Nie
刊名	Chinese Physics B
	2023
卷号	32 期号:4 页码:5
ISSN号	1674-1056
DOI	10.1088/1674-1056/acb423
英文摘要	We study systematically the negative magnetoresistance (MR) effect in WTe2 +/-alpha flakes with different thicknesses and doping concentrations. The negative MR is sensitive to the relative orientation between electrical-/magnetic-field and crystallographic orientation of WTe2 +/-alpha . The analysis proves that the negative MR originates from chiral anomaly and is anisotropic. Maximum entropy mobility spectrum is used to analyze the electron and hole concentrations in the flake samples. It is found that the negative MR observed in WTe2 +/-alpha flakes with low doping concentration is small, and the high doping concentration is large. The doping-induced disorder obviously inhibits the positive MR, so the negative MR can be more easily observed. In a word, we introduce disorder to suppress positive MR by doping, and successfully obtain the negative MR in WTe2 +/-alpha flakes with different thicknesses and doping concentrations, which indicates that the chiral anomaly effect in WTe2 is robust.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67767]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. C. Meng, X. X. Chen, T. N. Shao, M. R. Liu, W. M. Jiang, Z. T. Zhang, C. M. Xiong, R. F. Dou and J. C. Nie. Doping-enhanced robustness of anomaly-related magnetoresistance in WTe2±α flakes[J]. Chinese Physics B,2023,32(4):5.
APA	J. C. Meng, X. X. Chen, T. N. Shao, M. R. Liu, W. M. Jiang, Z. T. Zhang, C. M. Xiong, R. F. Dou and J. C. Nie.(2023).Doping-enhanced robustness of anomaly-related magnetoresistance in WTe2±α flakes.Chinese Physics B,32(4),5.
MLA	J. C. Meng, X. X. Chen, T. N. Shao, M. R. Liu, W. M. Jiang, Z. T. Zhang, C. M. Xiong, R. F. Dou and J. C. Nie."Doping-enhanced robustness of anomaly-related magnetoresistance in WTe2±α flakes".Chinese Physics B 32.4(2023):5.