Topological phases in N-layer ABC-graphene boron-nitride moire superlattices

David Andres Galeano Gonzalez, Bheema Lingam Chittari, Youngju Park +2

Rhombohedral $N=3$ trilayer graphene on hexagonal boron nitride (TLG/BN) hosts gate-tunable, valley-contrasting, nearly flat topological bands that can trigger spontaneous quantu…