Competing electronic orders on kagome lattices at van Hove filling
Competing electronic orders on kagome lattices at van Hove filling
The electronic orders in Hubbard models on a kagome lattice at van Hove filling are of intense current interest and debate. We study this issue using the singular-mode functional renormalization group theory. We discover a rich variety of electronic instabilities under short-range interactions. With increasing on-site repulsion $U$, the system …