Host: Eun-Ah Kim, Debanjan Chowdhury, Chao-Ming Jian

Title: Broken-symmetry states in multilayer graphene moiré superlattices —— A mean-field study.

Abstract: A various of spontaneously broken symmetry states have been observed in multilayer graphene moiré superlattices, including superconductors, correlated insulators and Chern insulators. Strong interactions as a result of flat bands formation at low energies are responsible for these spontaneous symmetry breaking states. In addition to flat bands, valley and spin degeneracies and the topological feature of graphene make graphene moiré systems rich in phenomena but complex as well. In this presentation, I will talk about several broken-symmetry states and their special properties in multilayer graphene moiré superlattices, based on a mean-field level study.

Poster