Unconventional Fermi Surface Instabilities in the Kagome Hubbard Model
Unconventional Fermi Surface Instabilities in the Kagome Hubbard Model
We investigate the competing Fermi surface instabilities in the kagome tight-binding model. Specifically, we consider on-site and short-range Hubbard interactions in the vicinity of van Hove filling of the dispersive kagome bands where the fermiology promotes the joint effect of enlarged density of states and nesting. The sublattice interference mechanism …