D. Y. Cho

Surface Reconstruction-Driven Insulating Behavior in Metallic Charge-Density-Wave 1T-TaSe2

Abstract Bulk 1T-TaSe2 is metallic, yet its surface consistently exhibits an insulating gap─a dichotomy long attributed to a surface Mott insulator driven by enhanced electron correlations. Using density functional theory calculations, we show that this insulating surface instead...