Nonreciprocal Charge Transport in Topological Kagome Superconductor CsV<sub>3</sub>Sb<sub>5</sub>

doi:arXiv:2210.10437

	Nonreciprocal Charge Transport in Topological Kagome Superconductor CsV₃Sb₅
	Wu, Yueshen1,2 ; Wang, Qi1,2 ; Zhou, Xiang1,2 ; Wang, Jinghui1,2 ; Dong, Peng1,2 ; He, Jiadian1,2 ; Ding, Yifan1,2 ; Teng, Bolun1,2 ; Zhang, Yiwen1,2 ; Li, Yifei 1,2; Zhao, Chenglong1 ; Zhang, Hongti1 ; Liu, Jianpeng1,2 ; Qi, Yanpeng1,2,3 ; Watanabe, Kenji 4; Taniguchi, Takashi 5; Li, Jun1,2,6,7 ; Li, Jun
	2022-10-19
状态	已发表
摘要	Nonreciprocal charge transport phenomena are widely studied in two-dimensional superconductors, which demonstrate unidirectional anisotropy magnetoresistances as a result of symmetry breaking. Here, we report a strong nonreciprocal transport phenomenon in superconducting CsV3Sb5 thin flakes. The second harmonic voltages, mainly originating from the rectification effect of vortex motion, are unambiguously developed with in-plane and out-of-plane magnetic fields, and their magnitudes are comparable to those in noncentrosymmetric superconductors. The second harmonic magnetoresistances split into several peaks and some of them reverse their signs by ramping the magnetic field or the current within the superconducting transition. The nonreciprocity suggests a strong asymmetry in CsV3Sb5. The centrosymmetric structure and symmetric electronic phases in CsV3Sb5 can hardly induce the distinct nonreciprocal transport phenomenon, which could be correlated to a symmetry breaking from an unconventional superconducting order parameter symmetry.
DOI	arXiv:2210.10437
相关网址	查看原文
出处	Arxiv
WOS记录号	PPRN:22116232
WOS类目	Physics, Condensed Matter
资助项目	National Natural Science Foundation of China[
文献类型	预印本
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/348567
专题	物质科学与技术学院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_PI研究组_张洪题组物质科学与技术学院_公共科研平台_拓扑物理实验室物质科学与技术学院_PI研究组_张石磊组物质科学与技术学院_PI研究组_刘健鹏组
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, Shanghai Key Lab High resolut Electron Microscopy, Shanghai 201210, Peoples R China 4.Natl Inst Mat Sci, Res Ctr Funct Mat, Tsukuba, Tsukuba 3050044, Japan 5.Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Tsukuba, Tsukuba 3050044, Japan 6.Chinese Acad Sci, State Key Lab Funct Mat Informat, 865 Changning Rd, Shanghai 200050, Peoples R China 7.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yueshen,Wang, Qi,Zhou, Xiang,et al. Nonreciprocal Charge Transport in Topological Kagome Superconductor CsV₃Sb₅. 2022.