ShanghaiTech University Knowledge Management System
| Observation of topological Dirac fermions and surface states in superconducting BaSn3 | |
| 2021 | |
| 发表期刊 | PHYSICAL REVIEW B (IF:3.2[JCR-2023],3.3[5-Year]) |
| ISSN | 2469-9950 |
| EISSN | 2469-9969 |
| 卷号 | 103期号:15 |
| DOI | 10.1103/PhysRevB.103.155148 |
| 摘要 | The interplay between topological electronic structure and superconductivity has attracted tremendous research interests recently as they could induce topological superconductivity (TSCs) which may be used to realize topological qubits for quantum computation. Among various TSC candidates, superconducting BaSn3 (T-c similar to 4.4 K) has been predicted to be a topological Dirac semimetal (TDS) hosting two pairs of Dirac points along the Gamma-A direction. Here, by combining the use of angle-resolved photoemission spectroscopy and ab initio calculations, we identified the predicted topological Dirac fermions and confirmed the TDS nature of the compound. In addition, we observed surface states connecting the Dirac points. Our observations demonstrate BaSn3 as a superconductor with nontrivial topological electronic structures. |
| URL | 查看原文 |
| 收录类别 | SCIE ; EI |
| 语种 | 英语 |
| WOS研究方向 | Materials Science ; Physics |
| WOS类目 | Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000646765200001 |
| 出版者 | AMER PHYSICAL SOC |
| 原始文献类型 | Article |
| 引用统计 | 正在获取...
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| 文献类型 | 期刊论文 |
| 条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/126687 |
| 专题 | 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_柳仲楷组 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_特聘教授组_陈宇林 物质科学与技术学院_硕士生 |
| 通讯作者 | Xu, G. |
| 作者单位 | 1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China; 2.CAS Shanghai Sci Res Ctr, Shanghai 200031, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 5.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China; 6.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China; 7.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China; 8.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China; 9.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA; 10.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China; 11.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; 12.Univ Oxford, Dept Phys, Oxford OX1 3PU, England |
| 第一作者单位 | 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 | Huang, K.,Luo, A. Y.,Chen, C.,et al. Observation of topological Dirac fermions and surface states in superconducting BaSn3[J]. PHYSICAL REVIEW B,2021,103(15). |
| APA | Huang, K..,Luo, A. Y..,Chen, C..,Zhang, G. N..,Liu, X. L..,...&Chen, Y. L..(2021).Observation of topological Dirac fermions and surface states in superconducting BaSn3.PHYSICAL REVIEW B,103(15). |
| MLA | Huang, K.,et al."Observation of topological Dirac fermions and surface states in superconducting BaSn3".PHYSICAL REVIEW B 103.15(2021). |
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