Minimal model for low-energy electronic states of twisted bilayer graphene

10 Jan 2019 Stephen Carr Shiang Fang Ziyan Zhu Efthimios Kaxiras

We introduce a physically motivated minimal model for the electronic structure of twisted bilayer graphene (tBLG), which incorporates the crucial role of lattice relaxation. Our model, based on $k \cdot p$ perturbation theory, combines the accuracy of DFT calculations through effective tight-binding Hamiltonians with the computational efficiency and complete control of the twist angle offered by continuum models... (read more)

PDF Abstract

Categories


  • MESOSCALE AND NANOSCALE PHYSICS