Charge density wave orders and enhanced superconductivity under pressure in the kagome metal CsV3Sb5

doi:arXiv:2109.01869

	Charge density wave orders and enhanced superconductivity under pressure in the kagome metal CsV3Sb5
	Wang, Qi1,2 ; Kong, Pengfei1 ; Shi, Wujun1,3,4 ; Pei, Cuiying1 ; Wen, Chenhaoping1 ; Gao, Lingling1 ; Zhao, Yi1 ; Yin, Qiangwei 5; Wu, Yueshen1 ; Li, Gang1,2 ; Lei, Hechang 5; Li, Jun1,2 ; Chen, Yulin1,2,6 ; Yan, Shichao1,2 ; Qi, Yanpeng1
	2021-09-04
状态	已发表
摘要	Superconductivity in topological kagome metals has recently received great research interests. Here, charge density wave (CDW) orders and the evolution of superconductivity under various pressures in CsV3Sb5 single crystal with V kagome lattice are investigated. By using high-resolution scanning tunnelling microscopy /spectroscopy (STM/STS), two CDW orders in CsV3Sb5 are observed which correspond to 4a×1a and 2a×2a superlattices. By applying pressure, the superconducting transition temperature Tc is significantly enhanced and reaches a maximum value of 8.2 K at around 1 GPa. Accordingly, CDW state is gradually declined as increasing the pressure, which indicates the competing interplay between CDW and superconducting state in this material. The broad superconducting transitions around 0.4 0.8 GPa can be related to the strong competition relation among two CDW states and superconductivity. These results demonstrate that CsV3Sb5 is a new platform for exploring the interplay between superconductivity and CDW in topological kagome metals.
DOI	arXiv:2109.01869
相关网址	查看原文
出处	Arxiv
WOS记录号	PPRN:11915410
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/348516
专题	物质科学与技术学院物质科学与技术学院_PI研究组_李刚组物质科学与技术学院_PI研究组_颜世超组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_硕士生物质科学与技术学院_博士生物质科学与技术学院_PI研究组_李军组物质科学与技术学院_公共科研平台_拓扑物理实验室大科学中心_公共科研平台_大科学装置建设部
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China 3.ShanghaiTech Univ, Ctr Transformat Sci, Shanghai 201210, Peoples R China 4.ShanghaiTech Univ, Shanghai High Repetit Rate XFEL & Extreme Light Facil SHINE, Shanghai 201210, Peoples R China 5.Renmin Univ China, Dept Phys, Beijing Key Lab Optoelect Funct Mat & Micronano Devices, Beijing 100872, Peoples R China 6.Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX13PU, Oxfordshire, England
推荐引用方式 GB/T 7714	Wang, Qi,Kong, Pengfei,Shi, Wujun,et al. Charge density wave orders and enhanced superconductivity under pressure in the kagome metal CsV3Sb5. 2021.