Photoinduced phase transitions in two-dimensional charge-density-wave 1T-TaS<sub>2</sub>

Photoinduced phase transitions in two-dimensional charge-density-wave 1T-TaS₂

Wen Wen^{1, 2}, Dang Chunhe^{1, 2}, Xie Liming^{1, 2, †}

CDW phase in 1T-TaS₂ at different temperatures. (a) The CCDW, NCCDW, and ICCDW phases at different temperatures. (b) Crystal structure of 1T-TaS₂ with David-star clusters consisting of 13 Ta atoms. (c) Temperature-dependent resistance of bulk 1T-TaS₂. (d) Temperature-dependent resistance of 1T-TaS₂ with thickness of 6 nm. As the thickness of 1T-TaS₂ decreases, the phase transition from NC to IC phase is unresolvable owing to the slow kinetics. (c) and (d) were reproduced from Ref. [13]. Copyright 2015, Springer Nature.