Designing 1D correlated-electron states by non-Euclidean topography of 2D monolayers

Abstract

Flat electronic bands and the ensuing correlated phases have been explored in twisted 2D bilayers and in periodically buckled graphene. Here the authors propose a strategy to realize 1D flat bands with a tunable bandwidth in a 2D semiconductor deposited on a patterned substrate with a non-zero Gaussian curvature.