Topological phase in the extended Haldane-Hubbard model with sublattice-dependent repulsion

Bao-Qing Wang, Can Shao, Takami Tohyama +2

We study the ground-state phase diagram of the half-filled extended Haldane-Hubbard model on the honeycomb lattice with sublattice-dependent on-site repulsion ($U_{\text{A/B}}$) us…