Valley-contrasting physics, topological bands, and Dirac cone in the charge density wave phase of a 1T-MoS2 monolayer
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-02-24 |
| Journal | Applied Physics Letters |
| Authors | Liangyu Qiu, Chunhua Zeng, Xiaobo Feng, Lin Zhuang, WuāMing Liu |
| Institutions | Czech Academy of Sciences, Institute of Physics, Yunnan Normal University |
| Citations | 1 |
Abstract
Section titled āAbstractāCharge density waves (CDWs), valley-contrasting physics, and topological bands have been observed in 1T, 1H, and 1Tā² transition metal dichalcogenides (TMDs), respectively, but rarely observed together in a single TMD due to the completely different physical origins. This study discovers 1T-MoS2 monolayers can possess the valley-contrasting physics. Furthermore, the topological bands, Dirac cones, diamond-chain, and zigzag CDW can be induced by biaxial strain, indicating the exotic roles of the strain. Our findings not only broaden the way of searching the valley semiconductors but also open a door to study the topological bands and Dirac cone of CDW phases.