Supercells and Moiré Structures

Supercells of periodic models: band unfolding and the spectral function of disordered supercells, and the commensurate moiré cells of twisted bilayers, down to the flat bands of magic-angle twisted bilayer graphene.

Band Unfolding: the Effective Band Structure of a Disordered Supercell

Band Unfolding: the Effective Band Structure of a Disordered Supercell

Magic-Angle Twisted Bilayer Graphene: Flat Moiré Bands

Magic-Angle Twisted Bilayer Graphene: Flat Moiré Bands