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Symmetry breaking states at commensurate fillings of the Moire bands of the twisted bilayer graphene

ORAL

Abstract

We study the twisted bilayer graphene system with the continuous model together with the long-range Coulomb interaction. Within the Hartree Fock approximation, we are able to find some symmetry breaking ground states at commensurate fillings of the Moire bands, which will gap out the Dirac points at the reduced Brillouin Zone that are otherwise protected by the symmetry.

Presenters

  • Yi Zhang

    avli Institute for Theoretical Sciences, Beijing 100190, China, University of the Chinese Academy of Sciences, Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences

Authors

  • Yi Zhang

    avli Institute for Theoretical Sciences, Beijing 100190, China, University of the Chinese Academy of Sciences, Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences

  • Kun Jiang

    Boston College, Institute of Physics, Chinese Academy of Sciences, Physics, Boston College, Department of Physics, Boston College

  • Ziqiang Wang

    Boston College, Department of Physics, Boston College, Physics, Boston College

  • Fu-Chun Zhang

    Kavli Institute of Theoretical Sciences, University of Chinese Academy of Sciences, University of Hong Kong, Kavli Institute of Theoretical Sciences, University of the Chinese Academy of Sciences, Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences