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Charge order and superconductivity in kagome materials


Neupert, Titus; Denner, M Michael; Yin, Jia-Xin; Thomale, Ronny; Hasan, M Zahid (2022). Charge order and superconductivity in kagome materials. Nature Physics, 18(2):137-143.

Abstract

Lattice geometry, topological electron behaviour and the competition between different possible ground states all play a role in determining the properties of materials with a kagome lattice structure. In particular, the compounds KV3Sb5, CsV3Sb5 and RbV3Sb5 all feature a kagome net of vanadium atoms. These materials have recently been shown to exhibit superconductivity at low temperature and an unusual charge order at high temperature, revealing a connection to the underlying topological nature of the band structure. We highlight these discoveries, place them in the context of wider research efforts in topological physics and superconductivity, and discuss the open problems for this field.

Abstract

Lattice geometry, topological electron behaviour and the competition between different possible ground states all play a role in determining the properties of materials with a kagome lattice structure. In particular, the compounds KV3Sb5, CsV3Sb5 and RbV3Sb5 all feature a kagome net of vanadium atoms. These materials have recently been shown to exhibit superconductivity at low temperature and an unusual charge order at high temperature, revealing a connection to the underlying topological nature of the band structure. We highlight these discoveries, place them in the context of wider research efforts in topological physics and superconductivity, and discuss the open problems for this field.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > General Physics and Astronomy
Uncontrolled Keywords:General Physics and Astronomy
Language:English
Date:1 February 2022
Deposited On:22 Jun 2022 14:57
Last Modified:27 Feb 2024 02:42
Publisher:Nature Publishing Group
ISSN:1745-2473
OA Status:Green
Publisher DOI:https://doi.org/10.1038/s41567-021-01404-y
  • Content: Accepted Version
  • Language: English
  • Description: Non-commercial use only