Rui Shi

Flat Chern bands and correlated states in spiral magnet

Flat topological bands provide a promising platform for realizing exotic correlated quantum phases such as fractional Chern insulators. Here, we predict the van der Waals monolayer ReAg 2 Cl 6 hosts isolated flat Chern bands at the Fermi level in its 120 ∘ antiferromagnetic groun...