中国物理B ›› 2016, Vol. 25 ›› Issue (11): 117202-117202.doi: 10.1088/1674-1056/25/11/117202

所属专题: TOPICAL REVIEW — Topological electronic states

• TOPICAL REVIEW—Topological electronic states • 上一篇    下一篇

Weak antilocalization and interaction-induced localization of Dirac and Weyl Fermions in topological insulators and semimetals

Hai-Zhou Lu(卢海舟), Shun-Qing Shen(沈顺清)   

  1. 1 Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China;
    2 Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
  • 收稿日期:2016-01-19 修回日期:2016-09-28 出版日期:2016-11-05 发布日期:2016-11-05
  • 基金资助:

    Project supported by the National Key R & D Program, China (Grant No. 2016YFA0301700), the Research Grant Council, University Grants Committee, Hong Kong, China (Grant No. 17303714), the National Natural Science Foundation of China (Grant No. 11574127), and the National Thousand-Young-Talents Program of China.

Weak antilocalization and interaction-induced localization of Dirac and Weyl Fermions in topological insulators and semimetals

Hai-Zhou Lu(卢海舟)1, Shun-Qing Shen(沈顺清)2   

  1. 1 Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China;
    2 Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
  • Received:2016-01-19 Revised:2016-09-28 Online:2016-11-05 Published:2016-11-05
  • Supported by:

    Project supported by the National Key R & D Program, China (Grant No. 2016YFA0301700), the Research Grant Council, University Grants Committee, Hong Kong, China (Grant No. 17303714), the National Natural Science Foundation of China (Grant No. 11574127), and the National Thousand-Young-Talents Program of China.

摘要:

Weak localization and antilocalization are quantum transport phenomena that arise from the quantum interference in disordered metals. At low temperatures, they can give distinct temperature and magnetic field dependences in conductivity, allowing the symmetry of the system to be explored. In the past few years, they have also been observed in newly emergent topological materials, including topological insulators and topological semimetals. In contrast from the conventional electrons, in these new materials the quasiparticles are described as Dirac or Weyl fermions. In this article, we review our recent efforts on the theories of weak antilocalization and interaction-induced localization for Dirac and Weyl fermions in topological insulators and topological semimetals.

关键词: localization, antilocalization, topological insulator, topological semimetal

Abstract:

Weak localization and antilocalization are quantum transport phenomena that arise from the quantum interference in disordered metals. At low temperatures, they can give distinct temperature and magnetic field dependences in conductivity, allowing the symmetry of the system to be explored. In the past few years, they have also been observed in newly emergent topological materials, including topological insulators and topological semimetals. In contrast from the conventional electrons, in these new materials the quasiparticles are described as Dirac or Weyl fermions. In this article, we review our recent efforts on the theories of weak antilocalization and interaction-induced localization for Dirac and Weyl fermions in topological insulators and topological semimetals.

Key words: localization, antilocalization, topological insulator, topological semimetal

中图分类号:  (Spin polarized transport)

  • 72.25.-b
75.47.-m (Magnetotransport phenomena; materials for magnetotransport) 78.40.Kc (Metals, semimetals, and alloys)