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...

2024年6月26日 · By incorporating chiral molecules into conventional superconductor lattices such as TaS2 to form a hybrid superlattice, non-centrosymmetry could be introduced and can be shown to help lead to ...

Tantalum (IV) sulfide is an inorganic compound with the formula Ta S 2. It is a layered compound with three-coordinate sulfide centres and trigonal prismatic or octahedral metal centres. [2] . It is structurally similar to molybdenum disulfide MoS 2, and numerous other transition metal dichalcogenides.

2016年3月17日 · In its bulk state, TaS 2 is composed of robust covalently bonded S–Ta–S planes that stack upon each other. A variety of polytypic phases originate from the distinct in-plane Ta...

2022年7月19日 · In this article, we review the recent progress of the scanning tunneling microscopy studies of 1 T -TaS 2 and 1 T -TaSe 2 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.

Metallic two-dimensional transition-metal dichalcogenides (TMDs) of the group 5 metals are emerging as catalysts for an efficient hydrogen evolution reaction (HER).

2023年6月26日 · Interlayer coupling and stacking order play essential roles in shaping the exotic electronic properties of two-dimensional materials. Here, we employ restacked TaS 2 ─a novel transition metal dichalcogenide (TMD) with weak vdW bonding and twisted angles─to investigate the strain effects of interlayer modulation on the electronic properties.

1T-TaS2 (1T phase Tantalum Disulfide) 1T-TaS2 at ambient pressure shows a metallic phase at high temperatures (>550K), an incommensurate CDW (ICCDW) phase below 550 K, a nearly commensurate CDW (NCCDW) phase below 350 K and a commensurate CDW (CCDW) phase including a Mott phase below ~180 K.

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...

2015年1月26日 · We develop a new doping method that utilizes a gate electric field to drive Li ions in and out of the layered 1T-TaS 2 and introduces high doping levels in each atomic layer.