ShanghaiTech University Knowledge Management System
Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn3 | |
2021-11 | |
发表期刊 | CHINESE PHYSICS LETTERS (IF:3.5[JCR-2023],2.1[5-Year]) |
ISSN | 0256-307X |
EISSN | 1741-3540 |
卷号 | 38期号:10 |
发表状态 | 已发表 |
DOI | 10.1088/0256-307X/38/10/107403 |
摘要 | Signatures of topological superconductivity (TSC) in superconducting materials with topological nontrivial states prompt intensive researches recently. Utilizing high-resolution angle-resolved photoemission spectroscopy and first-principles calculations, we demonstrate multiple Dirac fermions and surface states in superconductor BaSn3 with a critical transition temperature of about 4.4 K. We predict and then unveil the existence of two pairs of type-I topological Dirac fermions residing on the rotational axis. Type-II Dirac fermions protected by screw axis are confirmed in the same compound. Further calculation for the spin helical texture of the observed surface states originating from the Dirac fermions gives an opportunity for realization of TSC in one single material. Hosting multiple Dirac fermions and topological surface states, the intrinsic superconductor BaSn3 is expected to be a new platform for further investigation of topological quantum materials as well as TSC. |
收录类别 | SCIE ; EI |
语种 | 英语 |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000717792200001 |
出版者 | IOP Publishing Ltd |
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/133162 |
专题 | 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_郭艳峰组 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 |
通讯作者 | Liu, Jishan; Guo, Yanfeng; Shen, Dawei |
作者单位 | 1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Ctr Excellence Supercond Elect, Shanghai 200050, Peoples R China; 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China; 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China; 4.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Shenzhen 518055, Peoples R China; 5.Harbin Inst Technol, Flexible Printed Elect Technol Ctr, Shenzhen 518055, Peoples R China; 6.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Huang, Zhe,Shi, Xianbiao,Zhang, Gaoning,et al. Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn3[J]. CHINESE PHYSICS LETTERS,2021,38(10). |
APA | Huang, Zhe.,Shi, Xianbiao.,Zhang, Gaoning.,Liu, Zhengtai.,Cho, Soohyun.,...&Shen, Dawei.(2021).Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn3.CHINESE PHYSICS LETTERS,38(10). |
MLA | Huang, Zhe,et al."Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn3".CHINESE PHYSICS LETTERS 38.10(2021). |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 |
修改评论
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。