Pressured-induced superconductivity extending across the topological phase transition in thallium-based topological materials TlBi(S<sub>1-x</sub>Sex)<sub>2</sub>

doi:arXiv:2211.10302

	Pressured-induced superconductivity extending across the topological phase transition in thallium-based topological materials TlBi(S_1-xSex)₂
	Pei, Cuiying1 ; Huang, Peihao 2,3,4; Zhu, Peng 5,6,7; Liu, Linlin 2,3,4; Wang, Qi1,8 ; Zhao, Yi1 ; Gao, Lingling1 ; Li, Changhua1 ; Cao, Weizheng1 ; Lv, Jian 2,3,4; Li, Xiang 5,6,7; Wang, Zhiwei 5,6,7; Yao, Yugui 5,6; Yan, Binghai 9; Felser, Claudia 10; Chen, Yulin1,8,11 ; Liu, Hanyu2,3,4 ; Qi, Yanpeng1,8,12
	2022-11-18
状态	已发表
摘要	The coexistence of superconductivity and topology holds the potential to realize exotic quantum states of matter. Here we report that superconductivity induced by high pressure in three thallium-based materials, covering the phase transition from a normal insulator (TlBiS2) to a topological insulator (TlBiSe2) through a Dirac semimetal (TlBiSeS). By increasing the pressure up to 60 GPa, we observe superconductivity phase diagrams with maximal Tc values at 6.0-8.1 K. Our density-functional theory calculations reveal topological surface states in superconductivity phases for all three compounds. Our study paves the path to explore topological superconductivity and topological phase transitions.
DOI	arXiv:2211.10302
相关网址	查看原文
出处	Arxiv
WOS记录号	PPRN:23058595
WOS类目	Physics, Condensed Matter
资助项目	National Key R&D Program of China[
文献类型	预印本
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/348093
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_陈宇林物质科学与技术学院_PI研究组_齐彦鹏组物质科学与技术学院_博士生信息科学与技术学院_本科生物质科学与技术学院_公共科研平台_拓扑物理实验室
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 3.Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England 4.ShanghaiTech Univ, Shanghai Key Lab High resolut Electron Microscopy, Shanghai 201210, Peoples R China 5.Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China 6.Jilin Univ, Coll Phys, Int Ctr Computat Method & Software, Changchun 130012, Peoples R China 7.Jilin Univ, Int Ctr Future Sci, Changchun 130012, Peoples R China 8.Beijing Inst Technol, Ctr Quantum Phys, Sch Phys, Key Lab Adv Optoelect Quantum Architecture & Measurement,MOE, Beijing 100081, Peoples R China 9.Beijing Inst Technol, Beijing Key Lab Nanophoton & Ultrafine Optoelect Syst, Beijing 100081, Peoples R China 10.Beijing Inst Technol, Yangtze Delta Reg Acad, Mat Sci Ctr, Jiaxing 314011, Peoples R China 11.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China 12.Weizmann Inst Sci, Dept Condensed Matter Phys, IL-7610001 Rehovot, Israel
推荐引用方式 GB/T 7714	Pei, Cuiying,Huang, Peihao,Zhu, Peng,et al. Pressured-induced superconductivity extending across the topological phase transition in thallium-based topological materials TlBi(S_1-xSex)₂. 2022.