Phase driven topological states in correlated Haldane model on a honeycomb lattice

Abstract

Using mean field method and random phase approximation, we studied the phase driven topological exotic states in correlated Haldane model on a honeycomb lattice. It is found that topological spin density waves emerge with the phase change of next-nearest-neighbor hopping. We also investigated the topological properties of these spin density waves, including Chern number, edge state and Hall conductivity. Our work provides a new insight for topological phase transitions in correlated quantum anomalous Hall insulators.

Keywords: correlated Haldane model; phase; phase-driven; topological spin density waves; topological states.