Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV3Sb5

doi:10.1103/PhysRevLett.127.207002

	Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV3Sb5
	Fu, Yang 5; Zhao, Ningning 5; Chen, Zheng 1; Yin, Qiangwei 5; Tu, Zhijun 5; Gong, Chunsheng 5; Xi, Chuanying 1; Zhu, Xiangde 1; Sun, Yuping 1,2,3; Liu, Kai 5
刊名	PHYSICAL REVIEW LETTERS
	2021-11-12
卷号	127
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.127.207002
通讯作者	Zhu, Xiangde(xdzhu@hmfl.ac.cn)
英文摘要	We report the transport properties of kagome superconductor CsV3Sb5 single crystals at magnetic field up to 32 T. The Shubnikov-de Haas oscillations emerge at low temperature and four frequencies of F-alpha = 27 T, F-beta = 73 T, F-epsilon = 727 T, and F-eta = 786 T with relatively small cyclotron masses are observed. For F-beta and F-epsilon, the Berry phases are close to pi, providing clear evidence of nontrivial topological band structures of CsV3Sb5. Furthermore, the consistence between theoretical calculations and experimental results implies that these frequencies can be assigned to the Fermi surfaces locating near the boundary of Brillouin zone and confirms that the structure with an inverse Star of David distortion could be the most stable structure at charge density wave state. These results will shed light on the nature of correlated topological physics in kagome material CsV3Sb5.
资助项目	Beijing Natural Science Foundation[Z200005] ; National Key R&D Program of China[2018YFE0202600] ; National Key R&D Program of China[2017YFA0302903] ; National Key R&D Program of China[2016YFA0300504] ; National Natural Science Foundation of China[11822412] ; National Natural Science Foundation of China[11774423] ; National Natural Science Foundation of China[U1932217] ; National Natural Science Foundation of China[U2032215] ; Fundamental Research Funds for the Central Universities and Research Funds of Renmin University of China (RUC)[18XNLG14] ; Fundamental Research Funds for the Central Universities and Research Funds of Renmin University of China (RUC)[19XNLG13] ; Fundamental Research Funds for the Central Universities and Research Funds of Renmin University of China (RUC)[19XNLG17] ; Youth Innovation Promotion Association of CAS[2017483] ; Beijing National Laboratory for Condensed Matter Physics
WOS关键词	PHASE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000719865300007
资助机构	Beijing Natural Science Foundation ; National Key R&D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities and Research Funds of Renmin University of China (RUC) ; Youth Innovation Promotion Association of CAS ; Beijing National Laboratory for Condensed Matter Physics
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126580]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhu, Xiangde
作者单位	1.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China 2.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, HFIPS, Hefei 230031, Peoples R China 3.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 4.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 5.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
推荐引用方式 GB/T 7714	Fu, Yang,Zhao, Ningning,Chen, Zheng,et al. Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV3Sb5[J]. PHYSICAL REVIEW LETTERS,2021,127.
APA	Fu, Yang.,Zhao, Ningning.,Chen, Zheng.,Yin, Qiangwei.,Tu, Zhijun.,...&Lei, Hechang.(2021).Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV3Sb5.PHYSICAL REVIEW LETTERS,127.
MLA	Fu, Yang,et al."Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV3Sb5".PHYSICAL REVIEW LETTERS 127(2021).