Fig. 1: Electronic structure of monolayer 1T-TaS2 and bilayer T/T-TaS2.
From: Designing flat bands, localized and itinerant states in TaS2 trilayer heterostructures
a Schematic illustration showing the transition from a Mott insulator (monolayer) to a band insulator (bilayer) driven by interlayer hybridization. The yellow arrows represent local spins at the center of the Star of David, which get quenched in the band insulator. b, c Corresponding band structures and density of states for b monolayer 1T-TaS2 and c bilayer T/T-TaS2, demonstrating the evolution from a correlation-driven gap to a hybridization gap. Majority and minority spins are denoted by solid and dashed lines, respectively. The Fermi level is set to 0 eV.
