Direct evidence of intrinsic Mott state and its layer-parity oscillation in a breathing kagome crystal down to monolayer

Huanyu Liu, Wenhui Li, Zishu Zhou +8

We report direct spectroscopic evidence of correlation-driven Mott states in layered Nb${}_3$Cl${}_8$ through combining scanning tunneling microscopy (STM) and dynamical mean-field the…