A tight-binding model for MoS$_2$ monolayers

ORAL

Abstract

We propose an accurate tight-binding parametrization for the band structure of MoS$_2$ monolayers near the main energy gap. We introduce a generic and straightforward derivation for the band energies equations that could be employed for other monolayer dichalcogenides. A parametrization that includes spin–orbit coupling is also provided. The proposed set of model parameters reproduce both the correct orbital compositions and location of valence and conductance band in comparison with ab initio calculations. The model gives a suitable starting point for realistic large-scale atomistic electronic transport calculations.

Authors

  • Emilia Ridolfi

    Universidade Federal Fluminense

  • Duy Le

    University of Central Florida

  • Talat Rahman

    University of Central Florida

  • Eduardo Mucciolo

    University of Central Florida, Department of Physics, University of Central Florida, Orlando, Florida 32816, USA

  • Caio Lewenkopf

    Federal Fluminense University, Universidade Federal Fluminense