Yuyan Han

Apr 22, 2024 | nature.com | Yihao Wang |Zhihao Li |Xuan Luo |Jingjing Gao |Yuyan Han |Jin Tang | +12 more

AbstractWhile the monolayer sheet is well-established as a Mott-insulator with a finite energy gap, the insulating nature of bulk 1T-TaS2 crystals remains ambiguous due to their varying dimensionalities and alterable interlayer coupling. In this study, we present a unique approach to unlock the intertwined two-dimensional Mott-insulator and three-dimensional band-insulator states in bulk 1T-TaS2 crystals by structuring a laddering stack along the out-of-plane direction.