Gauge field for the edge states in graphene

ORAL

Abstract

By considering a continuous model for graphene, we study a special gauge field for the edge state. The gauge field explains the properties of the edge state such as the existence only on the zigzag edge, the partial appearance in the k-space, and the energy position around the Fermi energy. The gauge field polarizes the pseudospin. The applications of the gauge field to the ferromagnetism of edge states and the electron-phonon interaction are reported on.

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Authors

  • Ken-ichi Sasaki

    • Department of Quantum Matter, AdSM, Hiroshima University, Japan
    • Hiroshima University

  • Shuichi Murakami

    • Tokyo Institute of Technology and PRESTO, JST
    • Tokyo Institute of Technology
    • Department of Physics, Tokyo Institute of Technology and PRESTO, JST, Japan

  • Riichiro Saito

    • Department of Physics, Tohoku University, Japan