1 Department of Physics, Beijing Normal University, Beijing 100875, China; 2 College of Science, Inner Mongolia University of Technology, Hohhot 010051, China; 3 State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Abstract We study systematically the negative magnetoresistance () effect in WTe flakes with different thicknesses and doping concentrations. The negative is sensitive to the relative orientation between electrical-/magnetic-field and crystallographic orientation of WTe. The analysis proves that the negative 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 observed in WTe flakes with low doping concentration is small, and the high doping concentration is large. The doping-induced disorder obviously inhibits the positive , so the negative can be more easily observed. In a word, we introduce disorder to suppress positive by doping, and successfully obtain the negative in WTe flakes with different thicknesses and doping concentrations, which indicates that the chiral anomaly effect in WTe is robust.
(Defects and impurities in crystals; microstructure)
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 92065110, 11674031, 11974048, and 12074334) and the National Basic Research Program of China (Grant Nos. 2014CB920903 and 2013CB921701).
Corresponding Authors:
Ruifen Dou, Jiacai Nie
E-mail: rfdou@bnu.edu.cn;jcnie@bnu.edu.cn
Cite this article:
Jianchao Meng(孟建超), Xinxiang Chen(陈鑫祥), Tingna Shao(邵婷娜), Mingrui Liu(刘明睿), Weimin Jiang(姜伟民), Zitao Zhang(张子涛), Changmin Xiong(熊昌民), Ruifen Dou(窦瑞芬), and Jiacai Nie(聂家财) Doping-enhanced robustness of anomaly-related magnetoresistance in WTe2±α flakes 2023 Chin. Phys. B 32 047502
[1] Son D and Spivak B Z 2013 Phys. Rev. B88 104412 [2] Wan X, Turner A M, Vishwanath A and Savrasov S Y 2011 Phys. Rev. B83 205101 [3] Xiong J, Kushwaha S K, Liang T, Krizan J W, Hirschberger M, Wang W, Cava R J and Ong N P 2015 Science350 413 [4] Hirschberger M, Kushwaha S, Wang Z, Gibson Q, Liang S, Belvin C A, Bernevig B A, Cava R J and Ong N P 2016 Nat. Mater.15 1161 [5] Zhang C, Xu S, Belopolski I, Yuan Z, Lin Z, Tong B, Bian G, Alidoust N and Lee C 2016 Nat. Commun.7 1 [6] Niemann A C, Gooth J, Shu C W, Svenja B, Philip S, Ruben H, Bernd R, Chandra S, Vicky S, Marcus S, Claudia F, Yan B and Kornelius N 2017 Sci. Rep.7 43394 [7] Liu Z, Zhou B, Zhang Y, Wang Z, Weng H, Prabhakaran D, Mo S, Shen Z, Fang, Z, Dai X, Hussain Z and Chen Y 2018 Science12 6700 [8] Liang S, Lin J, Kushwaha S, Xing J, Ni N, Cava R J and Ong N P 2018 Phys. Rev. X8 031002 [9] He L, Hong X, Dong J, Pan J, Zhang Z, Zhang J and Li S 2014 Phys. Rev. Lett.113 246402 [10] Jeon S, Zhou B, Gyenis A, Feldman B, Kimchi I, Potter A, Gibson Q, Cava R J, Vishwanath A and Yazdani A 2014 Nat. Mater.13 851 [11] Li Q, Kharzeev D E, Zhang C, Huang Y, Pletikosic I, Fedorov A V, Zhong R D, Schneeloch J A, Gu G and Valla T 2016 Nat. Phys.12 550 [12] Huang X, Zhao L, Long Y, Wang P, Chen D, Yang Z, Liang H, Xue M, Weng H, Fang Z, Dai X and Chen G 2015 Phys. Rev. X5 031023 [13] Wang Y, Liu E, Liu H, Pan Y, Zhang L, Zeng J, Fu Y, Wang M, Xu K, Huang Z, Wang Z, Lu H, Xing D, Wang B, Wan X and Miao F 2016 Nat. Commun.7 13142 [14] Zhang E, Chen R, Huang C, Yu J, Zhang K, Wang W, Liu S, Ling J, Wan X, Lu H and Xiu F 2017 Nano Lett.17 878 [15] Lv Y, Li X, Zhang B, Deng W, Yao S, Chen Y, Zhou J, Zhang S, Lu M, Zhang L, Tian M, Sheng L and Chen Y 2017 Phys. Rev. Lett.118 096603 [16] Li P, Wen Y, He X, Zhang Q, Xia C, Yu Z, Yang S, Zhu Z, Alshareef H and Zhang X 2017 Nat. Commun.8 1 [17] Soluyanov A A, Gresch D, Wang Z, Wu Q, Troyer M, Dai X and Bernevig B 2015 Nature527 495 [18] Zhang M, Yang Z and Wang G 2018 J. Phys. Chem. C122 3533 [19] Nielsen H B and Ninomiya M 1981 Nucl. Phys. B185 20 [20] Ishizuka H and Nagaosa N 2019 Phys. Rev. B99 115205 [21] Kong W, Wu S, Richard P, Lian C, Wang J, Yang C, Shi Y and Ding H 2015 Appl. Phys. Lett.106 081906 [22] Arnold F, Shekhar C, Wu S, Sun Y, Dos Reis R D, Kumar N, Naumann M, Ajeesh M O, Schmidt M, Grushin A G, Bardarson J H, Baenitz M, Sokolov D, Borrmann H, Nicklas M, Felser C, Hassinger E and Yan B 2016 Nat. Commun.7 11615 [23] Schumann T, Goyal M and Kealhofer D A 2017 Phys. Rev. B95 241113 [24] Dos Reis R, Ajeesh M, Kumar N, Arnold F, Shekhar C, Naumann M, Schmidt M, Nicklas M and Hassinger E 2016 New J. Phys.18 085006 [25] Li Y, Wang Z, Li P, Yang X, Shen Z, Sheng F, Li X, Lu Y, Zheng Y and Xu Z 2017 Front. Phys.12 1 [26] Ritchie L, Xiao G, Ji Y, Chen T, Chien C, Zhang M, Chen J, Liu Z, Wu G and Zhang X 2003 Phys. Rev. B68 104430 [27] Li Z, Zeng Y, Zhang J, Zhou M and Wu W 2018 Phys. Rev. B98 165441 [28] Kim H J, Kim K S, Wang J, Sasaki M, Satoh N, Ohnishi A, Kitaura M, Yang M and Li L 2013 Phys. Rev. Lett.111 246603 [29] Kiatgamolchai S, Myronov M, Mironov O A, Kantser V G, Parker E H and Whall T E 2002 Phys. Rev. E66 036705 [30] Meng J, Chen X, Liu M, Jiang W, Zhang Z, Ling J, Shao T, Yao C, He L, Dou R, Xiong C and Nie J 2020 J. Phys.: Condens. Matter.32 355703 [31] Jaynes E T 1957 Phys. Rev.106 620 [32] Xiang F, Srinivasan A, Du Z, Klochan O, Dou S, Hamilton A R and Wang X 2018 Phys. Rev. B98 035115 [33] Zhao Y, Liu H, Yan J, An W, Liu J, Zhang X, Wang H, Liu Y, Jiang H, Li Q, Wang Y, Li X, Mandrus D, Xie X, Pan M and Wang J 2015 Phys. Rev. B92 041104 [34] Ali M N, Schoop L, Xiong J, Flynn S, Gibson Q, Hirschberger M, Ong N P and Cava R J 2015 Europhys. Lett.110 67002
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