Quantum Anomalous Hall Effect in Graphene

ORAL

Abstract

The anomalous Hall-effect (AHE) in graphene is investigated using the Landauer-Buttiker formula and tight-binding method in the presence of Rashba spin-orbit interaction and exchange field M. We found that the anomalous Hall conductance could be exactly quantized to one in the unit of e(2)/h by tuning the controllabe substrate-induced spin-orbit interaction and M.

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Authors

  • Zhenhua Qiao

    Department of Physics, The University of Texas, Austin, Texas 78712, USA

  • Shengyuan Yang

    Department of Physics, The University of Texas, Austin, Texas 78712, USA, The University of Texas at Austin

  • Yugui Yao

    Institute of Physics, CAS, Beijing 100190, China \& Department of Physics, University of Texas, Austin, Texas 78712, USA, Institute of Physics, Chinese Academy of Sciences, Beijing, China

  • Jian Wang

    Department of Physics, The University of Hong Kong, HKSAR, China

  • Qian Niu

    University of Texas at Austin, Department of Physics, The University of Texas, Austin, Texas 78712, USA, The University of Texas, Austin