Bulk Fermi surface of the layered superconductor TaSe3 with three-dimensional strong topological state

doi:10.1103/PhysRevB.101.155117

	Bulk Fermi surface of the layered superconductor TaSe3 with three-dimensional strong topological state
	Xia, Wei1,2,3 ; Shi, Xianbiao 4,5,6; Zhang, Yong3,7,8 ; Su, Hao1,2,3 ; Wang, Qin 9,17; Ding, Linchao 11,12; Chen, Leiming 13; Wang, Xia1,14 ; Zou, Zhiqiang1,14 ; Yu, Na1,14 ; Pi, Li 15; Hao, Yufeng 9,10; Li, Bin 16; Zhu, Zengwei 11,12; Zhao, Weiwei 4,5,6; Kou, Xufeng7 ; Guo, Yanfeng1
	2020-04-15
发表期刊	PHYSICAL REVIEW B (IF:3.2[JCR-2023],3.3[5-Year])
ISSN	2469-9950
EISSN	2469-9969
卷号	101 期号:15
发表状态	已发表
DOI	10.1103/PhysRevB.101.155117
摘要	High-magnetic-field transport measurements and ab initio calculations on the layered superconductor TaSe3 have provided evidence for the existence of a three-dimensional strong topological state. Longitudinal magnetotransport measurements up to similar to 33 T unveiled striking Shubnikov-de Haas oscillations with two fundamental frequencies at 100 and 175 T corresponding to a nontrivial hole Fermi pocket at the Gamma point and a nontrivial electron Fermi pocket at the B point, respectively, in the Brillouin zone. However, calculations revealed one more electron pocket at the B point which was not detected by the magnetotransport measurements, presumably due to the limited carrier momentum relaxation time. Angle-dependent quantum oscillations by rotating the sample with respect to the magnetic field revealed clear changes in the two fundamental frequencies, indicating anisotropic electronic Fermi pockets. The ab initio calculations gave the topological Z(2) invariant of (1; 100) and revealed a single Dirac cone on the (1 0 -1) surface at the (X) over bar point with helical spin texture at a constant energy contour, suggesting a strong topological state. The results demonstrate TaSe3 as an excellent platform to study the interplay between the topological phase and superconductivity and a promising system for the exploration of topological superconductivity.
收录类别	SCI ; SCIE ; EI
资助项目	333 High Level Talent Training Project of Jiangsu[BRA2019029]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000525841700002
出版者	AMER PHYSICAL SOC
EI入藏号	20202008644255
EI主题词	Calculations ; Magnetic fields ; Natural frequencies ; Selenium compounds ; Superconducting materials ; Tantalum compounds ; Textures ; Topology
EI分类号	Magnetism: Basic Concepts and Phenomena:701.2 ; Superconducting Materials:708.3 ; Mathematics:921 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4
WOS关键词	TOTAL-ENERGY CALCULATIONS ; BOUND-STATES ; SCHEMES
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/119210
专题	信息科学与技术学院_硕士生物质科学与技术学院_PI研究组_郭艳峰组信息科学与技术学院_PI研究组_寇煦丰组物质科学与技术学院_公共科研平台_分析测试平台物质科学与技术学院_硕士生物质科学与技术学院_博士生信息科学与技术学院_博士生
共同第一作者	Shi, Xianbiao; Zhang, Yong
通讯作者	Kou, Xufeng; Guo, Yanfeng
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Harbin Inst Technol, State Key Lab Adv Welding, Shenzhen 518055, Peoples R China 5.Harbin Inst Technol, Joining & Flexible Printed Elect Technol Ctr, Shenzhen 518055, Peoples R China 6.Harbin Inst Technol, Key Lab Microsyst & Microstruct Mfg, Minist Educ, Harbin 150001, Peoples R China 7.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China 8.Chinese Acad Sci, Shanghai Inst Microsystern & Informat Technol, Shanghai 200050, Peoples R China 9.Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Peoples R China 10.Nanjing Univ, Haian Inst New Technol, Haian 226600, Peoples R China 11.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China 12.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 13.Zhengzhou Univ Aeronaut, Sch Mat Sci & Engn, Henan Key Lab Aeronaut Mat & Applicat Technol, Zhengzhou 450046, Henan, Peoples R China 14.ShanghaiTech Univ, Analyt Instrumentat Ctr, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 15.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China 16.Nanjing Univ Post & Telecommun, Informat Res Ctr, Nanjing 210023, Peoples R China 17.Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	信息科学与技术学院; 物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Xia, Wei,Shi, Xianbiao,Zhang, Yong,et al. Bulk Fermi surface of the layered superconductor TaSe3 with three-dimensional strong topological state[J]. PHYSICAL REVIEW B,2020,101(15).
APA	Xia, Wei.,Shi, Xianbiao.,Zhang, Yong.,Su, Hao.,Wang, Qin.,...&Guo, Yanfeng.(2020).Bulk Fermi surface of the layered superconductor TaSe3 with three-dimensional strong topological state.PHYSICAL REVIEW B,101(15).
MLA	Xia, Wei,et al."Bulk Fermi surface of the layered superconductor TaSe3 with three-dimensional strong topological state".PHYSICAL REVIEW B 101.15(2020).