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Topological kagome magnets and superconductors

Author

Listed:
  • Jia-Xin Yin

    (Princeton University
    Southern University of Science and Technology)

  • Biao Lian

    (Princeton University)

  • M. Zahid Hasan

    (Princeton University
    Princeton University
    Materials Sciences Division, Lawrence Berkeley National Laboratory
    Quantum Science Center)

Abstract

A kagome lattice naturally features Dirac fermions, flat bands and van Hove singularities in its electronic structure. The Dirac fermions encode topology, flat bands favour correlated phenomena such as magnetism, and van Hove singularities can lead to instabilities towards long-range many-body orders, altogether allowing for the realization and discovery of a series of topological kagome magnets and superconductors with exotic properties. Recent progress in exploring kagome materials has revealed rich emergent phenomena resulting from the quantum interactions between geometry, topology, spin and correlation. Here we review these key developments in this field, starting from the fundamental concepts of a kagome lattice, to the realizations of Chern and Weyl topological magnetism, to various flat-band many-body correlations, and then to the puzzles of unconventional charge-density waves and superconductivity. We highlight the connection between theoretical ideas and experimental observations, and the bond between quantum interactions within kagome magnets and kagome superconductors, as well as their relation to the concepts in topological insulators, topological superconductors, Weyl semimetals and high-temperature superconductors. These developments broadly bridge topological quantum physics and correlated many-body physics in a wide range of bulk materials and substantially advance the frontier of topological quantum matter.

Suggested Citation

  • Jia-Xin Yin & Biao Lian & M. Zahid Hasan, 2022. "Topological kagome magnets and superconductors," Nature, Nature, vol. 612(7941), pages 647-657, December.
    • Handle: RePEc:nat:nature:v:612:y:2022:i:7941:d:10.1038_s41586-022-05516-0
    DOI: 10.1038/s41586-022-05516-0
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    Citations

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    Cited by:

    1. Camron Farhang & Jingyuan Wang & Brenden R. Ortiz & Stephen D. Wilson & Jing Xia, 2023. "Unconventional specular optical rotation in the charge ordered state of Kagome metal CsV3Sb5," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Z. Guguchia & D. J. Gawryluk & S. Shin & Z. Hao & C. Mielke III & D. Das & I. Plokhikh & L. Liborio & J. Kane Shenton & Y. Hu & V. Sazgari & M. Medarde & H. Deng & Y. Cai & C. Chen & Y. Jiang & A. Ama, 2023. "Hidden magnetism uncovered in a charge ordered bilayer kagome material ScV6Sn6," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Saizheng Cao & Chenchao Xu & Hiroshi Fukui & Taishun Manjo & Ying Dong & Ming Shi & Yang Liu & Chao Cao & Yu Song, 2023. "Competing charge-density wave instabilities in the kagome metal ScV6Sn6," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    4. Changwon Park & Young-Woo Son, 2023. "Condensation of preformed charge density waves in kagome metals," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    5. S. X. M. Riberolles & Tyler J. Slade & Tianxiong Han & Bing Li & D. L. Abernathy & P. C. Canfield & B. G. Ueland & P. P. Orth & Liqin Ke & R. J. McQueeney, 2024. "Chiral and flat-band magnetic quasiparticles in ferromagnetic and metallic kagome layers," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    6. Lebing Chen & Xiaokun Teng & Hengxin Tan & Barry L. Winn & Garrett E. Granroth & Feng Ye & D. H. Yu & R. A. Mole & Bin Gao & Binghai Yan & Ming Yi & Pengcheng Dai, 2024. "Competing itinerant and local spin interactions in kagome metal FeGe," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    7. Hui Chen & Yuqing Xing & Hengxin Tan & Li Huang & Qi Zheng & Zihao Huang & Xianghe Han & Bin Hu & Yuhan Ye & Yan Li & Yao Xiao & Hechang Lei & Xianggang Qiu & Enke Liu & Haitao Yang & Ziqiang Wang & B, 2024. "Atomically precise engineering of spin–orbit polarons in a kagome magnetic Weyl semimetal," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    8. Ruoting Yin & Xiang Zhu & Qiang Fu & Tianyi Hu & Lingyun Wan & Yingying Wu & Yifan Liang & Zhengya Wang & Zhen-Lin Qiu & Yuan-Zhi Tan & Chuanxu Ma & Shijing Tan & Wei Hu & Bin Li & Z. F. Wang & Jinlon, 2024. "Artificial kagome lattices of Shockley surface states patterned by halogen hydrogen-bonded organic frameworks," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    9. Cuimei Cao & Shiwei Chen & Rui-Chun Xiao & Zengtai Zhu & Guoqiang Yu & Yangping Wang & Xuepeng Qiu & Liang Liu & Tieyang Zhao & Ding-Fu Shao & Yang Xu & Jingsheng Chen & Qingfeng Zhan, 2023. "Anomalous spin current anisotropy in a noncollinear antiferromagnet," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    10. S. X. M. Riberolles & Tyler J. Slade & R. L. Dally & P. M. Sarte & Bing Li & Tianxiong Han & H. Lane & C. Stock & H. Bhandari & N. J. Ghimire & D. L. Abernathy & P. C. Canfield & J. W. Lynn & B. G. Ue, 2023. "Orbital character of the spin-reorientation transition in TbMn6Sn6," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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