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Chin. Phys. B, 2020, Vol. 29(7): 077202    DOI: 10.1088/1674-1056/ab9612
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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
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.
Keywords:  Weyl semimetals      renormalization group      quasiparticle      conductivity  
Received:  05 March 2020      Revised:  18 May 2020      Published:  05 July 2020
PACS:  72.80.Ng (Disordered solids)  
  72.10.-d (Theory of electronic transport; scattering mechanisms)  
  11.10.Gh (Renormalization)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11874337).
Corresponding Authors:  Bo Fu     E-mail:  bofu123@mail.ustc.edu.cn

Cite this article: 

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 2020 Chin. Phys. B 29 077202

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