2020年8月24日 · 1 T -TaS 2 undergoes successive phase transitions upon cooling and eventually enters an insulating state of mysterious origin. Some consider this state to be a band insulator with interlayer...

2025年3月20日 · 1T-TaS2 is a non-magnetic Mott insulating transition-metal dichalcogenide with an odd number of electrons per unit cell, making it a potential spin-liquid candidate. This behavior arises from ...

2024年4月23日 · 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-TaS 2 crystals by structuring a...

2025年2月12日 · Stacking and twisting van der Waals materials provide a powerful tool to design quantum matter and engineer electron correlation. For instance, monolayers of 1T- and 1H-TaS2 are Mott insulating...

2022年7月19日 · In this article, we review the recent progress of the scanning tunneling microscopy studies of 1T-TaS2 and 1T-TaSe2 for bulk single crystals and molecular beam epitaxy monolayer films. We focus on how to understand the Mott insulating state in the whole set of materials, even when the stacking order takes effect.

该项工作于2020年8月25日以“ Band insulator to Mott insulator transition in 1 T -TaS 2 ”为题，在线发表于物理学术期刊Nature Communications [Nature Communications 11, 4215 (2020)]。...

2019年7月8日 · For the band gap of the Type I, it is found that a transition from metal to semiconductor is observed with the increase of the twisted angle θ. Differently, the band gap increases with the increase of the twisted angle θ for the Type II. The details of the band structures are shown in Fig. 4.

2025年2月18日 · Here, we explore the filling-dependent multiple stable intertwined electronic and atomic orders of the flat-band state of 1 T -TaS 2 encompassing hole order, phase orders, coexisting left- and right-chiral orders, and mixed phase/chiral orders via scanning tunneling microscopy (STM).

In this paper, we report the high-resolution angle-resolved photoemission spectroscopy (ARPES) studies on the electronic structure of Ti-doped 1$T$-Ti$_x$Ta$_ {1-x}$S$_2$ with different doping...

2019年12月23日 · Combining the molecular beam epitaxy growth, scanning tunneling microscopy measurements and first-principles calculations, we prepare monolayer 1 T -TaS 2 and TaSe 2 and explore their electronic structures at the atomic scale. Both two-dimensional (2D) compounds exhibit commensurate charge density wave phase at low temperature.