Nature of Unconventional Pairing in the Kagome Superconductors AV(3)Sb(5) (A = K, Rb, Cs)
文献类型：期刊论文
| 作者 | Wu, Xianxin2; Schwemmer, Tilman3; Mueller, Tobias3; Consiglio, Armando3; Sangiovanni, Giorgio4,5; Di Sante, Domenico6,7; Iqbal, Yasir8,9; Hanke, Werner3; Schnyder, Andreas P.; Denner, M. Michael |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2021 |
| 卷号 | 127期号:17页码:177001 |
| ISSN号 | 0031-9007 |
| 关键词 | STATES |
| DOI | 10.1103/PhysRevLett.127.177001 |
| 英文摘要 | The recent discovery of AV(3)Sb(5) (A = K, Rb, Cs) has uncovered an intriguing arena for exotic Fermi surface instabilities in a kagome metal. Among them, superconductivity is found in the vicinity of multiple van Hove singularities, exhibiting indications of unconventional pairing. We show that the sublattice interference mechanism is central to understanding the formation of superconductivity in a kagome metal. Starting from an appropriately chosen minimal tight-binding model with multiple van Hove singularities close to the Fermi level for AV(3)Sb(5), we provide a random phase approximation analysis of superconducting instabilities. Nonlocal Coulomb repulsion, the sublattice profile of the van Hove bands, and the interaction strength turn out to be the crucial parameters to determine the preferred pairing symmetry. Implications for potentially topological surface states are discussed, along with a proposal for additional measurements to pin down the nature of superconductivity in AV(3)Sb(5). |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27636]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Zurich, Dept Phys, Winterthurerstr 190, CH-8057 Zurich, Switzerland 2.[Wu, Xianxin; Schnyder, Andreas P.] Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Wurzburg, Inst Theoret Phys, D-97074 Wurzburg, Germany 5.Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany 6.Univ Wurzburg, WUrzburg Dresden Cluster Excellence Ctqmat, D-97074 Wurzburg, Germany 7.Univ Bologna, Dept Phys & Astron, Alma Mater Studiorum, I-40127 Bologna, Italy 8.Flatiron Inst, Ctr Computat Quantum Phys, 162 5th Ave, New York, NY 10010 USA 9.Indian Inst Technol Madras, Dept Phys, Chennai 600036, Tamil Nadu, India 10.Indian Inst Technol Madras, Quantum Ctr Diamond & Emerging Mat QuCenDiEM Grp, Chennai 600036, Tamil Nadu, India |
| 推荐引用方式 GB/T 7714 | Wu, Xianxin,Schwemmer, Tilman,Mueller, Tobias,et al. Nature of Unconventional Pairing in the Kagome Superconductors AV(3)Sb(5) (A = K, Rb, Cs)[J]. PHYSICAL REVIEW LETTERS,2021,127(17):177001. |
| APA | Wu, Xianxin.,Schwemmer, Tilman.,Mueller, Tobias.,Consiglio, Armando.,Sangiovanni, Giorgio.,...&Thomale, Ronny.(2021).Nature of Unconventional Pairing in the Kagome Superconductors AV(3)Sb(5) (A = K, Rb, Cs).PHYSICAL REVIEW LETTERS,127(17),177001. |
| MLA | Wu, Xianxin,et al."Nature of Unconventional Pairing in the Kagome Superconductors AV(3)Sb(5) (A = K, Rb, Cs)".PHYSICAL REVIEW LETTERS 127.17(2021):177001. |
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来源：理论物理研究所
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