Theories for the correlated insulating states and quantum anomalous Hall effect phenomena in twisted bilayer graphene
Jianpeng Liu, Xi Dai
Abstract
Based on an all-band moir\'e Hartree-Fock variational method, the authors study theoretically the correlated and topological states in magic-angle twisted bilayer graphene. They construct phase diagrams at various integer fillings. In particular, a so far unknown quantum state of matter, the moir\'e orbital antiferromagnetic state, is identified as the possible ground state at some fillings.
Topics & Concepts
Bilayer grapheneCondensed matter physicsQuantum Hall effectPhysicsGround stateGrapheneQuantum mechanicsElectronGraphene research and applicationsQuantum and electron transport phenomenaTopological Materials and Phenomena