中国物理B ›› 2025, Vol. 34 ›› Issue (8): 88102-088102.doi: 10.1088/1674-1056/adce9d
所属专题: SPECIAL TOPIC — Structures and properties of materials under high pressure
Zhenhai Yu(于振海)1,†, Yunguan Ye(叶运观)1,†, Pengtao Yang(杨芃焘)2,†, Yiming Wang(王弈铭)3,†, Liucheng Chen(陈刘城)2, Chenglin Li(李承霖)2, Jian Yuan(袁健)1, Ziyi Liu(刘子儀)2, Zhiwei Shen(申志伟)4, Shaojie Wang(王邵杰)4, Mingtao Li(李明涛)3, Chaoyang Chu(楚朝阳)1, Xia Wang(王霞)5, Jun Li(李俊)2, Lin Wang(王霖)4,‡, Wenge Yang(杨文革)3,§, and Yanfeng Guo(郭艳峰)1,6,¶
Zhenhai Yu(于振海)1,†, Yunguan Ye(叶运观)1,†, Pengtao Yang(杨芃焘)2,†, Yiming Wang(王弈铭)3,†, Liucheng Chen(陈刘城)2, Chenglin Li(李承霖)2, Jian Yuan(袁健)1, Ziyi Liu(刘子儀)2, Zhiwei Shen(申志伟)4, Shaojie Wang(王邵杰)4, Mingtao Li(李明涛)3, Chaoyang Chu(楚朝阳)1, Xia Wang(王霞)5, Jun Li(李俊)2, Lin Wang(王霖)4,‡, Wenge Yang(杨文革)3,§, and Yanfeng Guo(郭艳峰)1,6,¶
摘要: The transition metal trichalcogenides (TMTs) with quasi-one-dimensional (quasi-1D) layered crystal structure represent a unique platform to explore intriguing physical properties. Herein, we report the successful growth of a new TMT TiSe$_{3}$ single crystal by using a high-pressure and high-temperature technique. The crystal structure of TiSe$_{3}$ was determined by measuring the single-crystal x-ray diffraction and selected area electron diffraction. The 1D chain-like structure along the $b$-axis is formed by the TiSe$_{6}$ prisms which share their tops and bottoms with each other. TiSe$_{3}$ is a narrow band gap semiconductor with electron-type carriers under ambient conditions identified by the electrical and Hall effect measurements. It exhibits a pressure-induced semiconductor-to-metal transition around 4 GPa. As the pressure further increases to $\sim 6 $ GPa, a pressure-induced Lifshitz transition occurs, as indicated by the electrical transport measurements, high-pressure crystal structure characterizations, and electronic band structure calculations.
中图分类号: (Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)