中国物理B ›› 2022, Vol. 31 ›› Issue (9): 97405-097405.doi: 10.1088/1674-1056/ac7f95

所属专题: TOPICAL REVIEW — Celebrating 30 Years of Chinese Physics B

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Superconductivity and unconventional density waves in vanadium-based kagome materials AV3Sb5

Hui Chen(陈辉)1,2,3, Bin Hu(胡彬)1, Yuhan Ye(耶郁晗)1, Haitao Yang(杨海涛)1,2,3, and Hong-Jun Gao(高鸿钧)1,2,3,†   

  1. 1 Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, China;
    2 CAS Center for Excellence in Topological Quantum Computation, Beijing 100190, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 收稿日期:2022-04-15 修回日期:2022-06-25 接受日期:2022-07-08 出版日期:2022-08-19 发布日期:2022-09-03
  • 通讯作者: Hong-Jun Gao E-mail:hjgao@iphy.ac.cn
  • 基金资助:
    We are grateful to Profs. Ziqiang Wang, Sen Zhou, Xiaoli Dong, Fang Zhou, Li Yu, Yan Zhang, Lin Zhao, Xinjiang Zhou, Rui Zhou, Qingming Zhang, Binghai Yan, Kun Jiang, Jiangping Hu for helpful discussions and suggestion. We acknowledge the financial support from the Ministry of Science and Technology of China, the National Natural Science Foundation of China and Chinese Academy of Sciences.

Superconductivity and unconventional density waves in vanadium-based kagome materials AV3Sb5

Hui Chen(陈辉)1,2,3, Bin Hu(胡彬)1, Yuhan Ye(耶郁晗)1, Haitao Yang(杨海涛)1,2,3, and Hong-Jun Gao(高鸿钧)1,2,3,†   

  1. 1 Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, China;
    2 CAS Center for Excellence in Topological Quantum Computation, Beijing 100190, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • Received:2022-04-15 Revised:2022-06-25 Accepted:2022-07-08 Online:2022-08-19 Published:2022-09-03
  • Contact: Hong-Jun Gao E-mail:hjgao@iphy.ac.cn
  • Supported by:
    We are grateful to Profs. Ziqiang Wang, Sen Zhou, Xiaoli Dong, Fang Zhou, Li Yu, Yan Zhang, Lin Zhao, Xinjiang Zhou, Rui Zhou, Qingming Zhang, Binghai Yan, Kun Jiang, Jiangping Hu for helpful discussions and suggestion. We acknowledge the financial support from the Ministry of Science and Technology of China, the National Natural Science Foundation of China and Chinese Academy of Sciences.

摘要: Recently, the discovery of vanadium-based kagome metal AV3Sb5 (A= K, Rb, Cs) has attracted great interest in the field of superconductivity due to the coexistence of superconductivity, non-trivial surface state and multiple density waves. In this topical review, we present recent works of superconductivity and unconventional density waves in vanadium-based kagome materials AV3Sb5. We start with the unconventional charge density waves, which are thought to correlate to the time-reversal symmetry-breaking orders and the unconventional anomalous Hall effects in AV3Sb5. Then we discuss the superconductivity and the topological band structure. Next, we review the competition between the superconductivity and charge density waves under different conditions of pressure, chemical doping, thickness, and strains. Finally, the experimental evidence of pseudogap pair density wave is discussed.

关键词: kagome metal, superconductivity, charge density wave, pair density wave

Abstract: Recently, the discovery of vanadium-based kagome metal AV3Sb5 (A= K, Rb, Cs) has attracted great interest in the field of superconductivity due to the coexistence of superconductivity, non-trivial surface state and multiple density waves. In this topical review, we present recent works of superconductivity and unconventional density waves in vanadium-based kagome materials AV3Sb5. We start with the unconventional charge density waves, which are thought to correlate to the time-reversal symmetry-breaking orders and the unconventional anomalous Hall effects in AV3Sb5. Then we discuss the superconductivity and the topological band structure. Next, we review the competition between the superconductivity and charge density waves under different conditions of pressure, chemical doping, thickness, and strains. Finally, the experimental evidence of pseudogap pair density wave is discussed.

Key words: kagome metal, superconductivity, charge density wave, pair density wave

中图分类号:  (Properties of superconductors)

  • 74.25.-q
81.05.Zx (New materials: theory, design, and fabrication) 68.37.Ef (Scanning tunneling microscopy (including chemistry induced with STM)) 71.45.Lr (Charge-density-wave systems)