Photoinduced Dimension Crossover in 1T-TiSe2

• DOI: 10.1364/up.2022.th2b.1
• Publication Date: 2022-09-22T16:33:40Z
• Authors: Alfred Zong; Yun Cheng; Jun Li; Wei Xia; Shaofeng Duan; Wenxuan Zhao; Yidian Li; Fengfeng Qi; Jun Wu; Lingrong Zhao; Pengfei Zhu; Xiao Zou; Tao Jiang; Yanfeng Guo; Lexian Yang; Dong Qian; Wentao Zhang; Anshul Kogar; Michael W. Zuerch; Dao Xiang; Jie Zhang
• Keywords: Photoexcitation; Charge Density Wave

1 T -TiSe2 hosts a 3D charge-density-wave (CDW) state that also features exciton condensation. We find photoexcitation suppresses the CDW while creating 2D CDW, process controlled by excitonic correlations in system.