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
	2023
发表期刊	Chinese Physics B
ISSN	1674-1056
卷号	32 期号:4 页码:5
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.
DOI	10.1088/1674-1056/acb423
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	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.

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