Effect of weak disorder in multi-Weyl semimetals

doi:10.1088/1674-1056/ab9612

中国物理B ›› 2020, Vol. 29 ›› Issue (7): 77202-077202.doi: 10.1088/1674-1056/ab9612

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇下一篇

Effect of weak disorder in multi-Weyl semimetals

Zhen Ning(宁震), Bo Fu(付博), Qinwei Shi(石勤伟), Xiaoping Wang(王晓平)

1 Department of Physics, University of Science and Technology of China, Hefei 230026, China;
2 Department of Physics, The University of Hong Kong, Hong Kong, China;
3 Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

收稿日期:2020-03-05 修回日期:2020-05-18 出版日期:2020-07-05 发布日期:2020-07-05
通讯作者: Bo Fu E-mail:bofu123@mail.ustc.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11874337).

Effect of weak disorder in multi-Weyl semimetals

Zhen Ning(宁震)¹, Bo Fu(付博)², Qinwei Shi(石勤伟)³, Xiaoping Wang(王晓平)^1,3

1 Department of Physics, University of Science and Technology of China, Hefei 230026, China;
2 Department of Physics, The University of Hong Kong, Hong Kong, China;
3 Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

Received:2020-03-05 Revised:2020-05-18 Online:2020-07-05 Published:2020-07-05
Contact: Bo Fu E-mail:bofu123@mail.ustc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11874337).

摘要/Abstract

摘要： We study the behaviors of three-dimensional double and triple Weyl fermions in the presence of weak random potential. By performing the Wilsonian renormalization group (RG) analysis, we reveal that the quasiparticle experiences strong renormalization which leads to the modification of the density of states and quasiparticle residue. We further utilize the RG analysis to calculate the classical conductivity and show that the diffusive transport is substantially corrected due to the novel behavior of the quasiparticle and can be directly measured by experiments.

关键词: Weyl semimetals, renormalization group, quasiparticle, conductivity

Abstract: We study the behaviors of three-dimensional double and triple Weyl fermions in the presence of weak random potential. By performing the Wilsonian renormalization group (RG) analysis, we reveal that the quasiparticle experiences strong renormalization which leads to the modification of the density of states and quasiparticle residue. We further utilize the RG analysis to calculate the classical conductivity and show that the diffusive transport is substantially corrected due to the novel behavior of the quasiparticle and can be directly measured by experiments.

Key words: Weyl semimetals, renormalization group, quasiparticle, conductivity

中图分类号: (Disordered solids)

72.80.Ng

72.10.-d (Theory of electronic transport; scattering mechanisms) 11.10.Gh (Renormalization)

宁震, 付博, 石勤伟, 王晓平. Effect of weak disorder in multi-Weyl semimetals[J]. 中国物理B, 2020, 29(7): 77202-077202.

Zhen Ning(宁震), Bo Fu(付博), Qinwei Shi(石勤伟), Xiaoping Wang(王晓平). Effect of weak disorder in multi-Weyl semimetals[J]. Chin. Phys. B, 2020, 29(7): 77202-077202.

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