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Generalized Peierls substitution for the tight-binding model of twisted graphene systems in a magnetic field

ORAL

Abstract

This work addresses an important advanced methodology for twisted layered graphene in the presence of applied magnetic field by combining the Bloch-basis tight-binding model (TBM) and the generalized Peierls substitution. We investigate extensively the band structures, Landau levels (LLs), and quantum Hall conductivity (QHC) of twisted bilayer graphene and twisted double-bilayer graphene at large angles and the magic angles. Our theoretical model opens up an opportunity for comprehension of the interplay between an applied magnetic field and the twisting effect associated with layered graphene. The proposed method is expected to be applicable for the calculation of magnetic quantization problems of other complex systems.

Presenters

  • Thi-Nga Do

    National Cheng Kung University

Authors

  • Thi-Nga Do

    National Cheng Kung University

  • Po-Hsin Shih

    city university of new york

  • Hsin Lin

    Academia Sinica

  • Danhong Huang

    Air Force Research Lab - Kirtland

  • Godfrey Gumbs

    City University of New York, Hunter College of CUNY, City College of New York, Hunter College of New York

  • Tay-Rong Chang

    Natl Cheng Kung Univ, National Cheng Kung University