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Frustrated charge density wave and quasi-long-range bond-orientational order in the magnetic kagome FeGe

Author

Listed:
  • D. Subires

    (Paseo Manuel de Lardizábal
    Universidad del País Vasco UPV/EHU)

  • A. Kar

    (Paseo Manuel de Lardizábal)

  • A. Korshunov

    (Paseo Manuel de Lardizábal)

  • C. A. Fuller

    (Swiss-Norwegian Beamlines at European Synchrotron Radiation Facility)

  • Yi Jiang

    (Paseo Manuel de Lardizábal)

  • H. Hu

    (Paseo Manuel de Lardizábal)

  • D. Călugăru

    (Princeton University)

  • C. McMonagle

    (Swiss-Norwegian Beamlines at European Synchrotron Radiation Facility)

  • C. Yi

    (Max Planck Institute for Chemical Physics of Solids)

  • S. Roychowdhury

    (Max Planck Institute for Chemical Physics of Solids
    Indian Institute of Science Education and Research Bhopal)

  • W. Schnelle

    (Max Planck Institute for Chemical Physics of Solids)

  • C. Shekhar

    (Max Planck Institute for Chemical Physics of Solids)

  • J. Strempfer

    (Argonne National Laboratory)

  • A. Jana

    (CNR-Istituto Officina dei Materiali (CNR-IOM)
    International Center for Theoretical Physics (ICTP))

  • I. Vobornik

    (CNR-Istituto Officina dei Materiali (CNR-IOM))

  • J. Dai

    (ALBA Synchrotron Light Source)

  • M. Tallarida

    (ALBA Synchrotron Light Source)

  • D. Chernyshov

    (Swiss-Norwegian Beamlines at European Synchrotron Radiation Facility)

  • A. Bosak

    (European Synchrotron Radiation Facility (ESRF))

  • C. Felser

    (Max Planck Institute for Chemical Physics of Solids)

  • B. Andrei Bernevig

    (Paseo Manuel de Lardizábal
    Princeton University
    Basque Foundation for Science)

  • S. Blanco-Canosa

    (Paseo Manuel de Lardizábal
    Basque Foundation for Science)

Abstract

The intrinsic frustrated nature of a kagome lattice is amenable to the realization of exotic phases of matter, such as quantum spin liquids or spin ices, and the multiple-q charge density waves (CDW) in the kagome metals. Despite intense efforts to understand the mechanism driving the electronic modulations, its origin is still unknown and obscured by competing interactions and intertwined orders. Here, we identify a dimerization-driven 2D hexagonal charge-diffuse precursor in the antiferromagnetic kagome metal FeGe and demonstrate that the fraction of dimerized/undimerized states is the relevant order parameter of the multiple-q CDW of a continuous phase transition. The pretransitional charge fluctuations with propagation vector q = qM at TCDW

Suggested Citation

  • D. Subires & A. Kar & A. Korshunov & C. A. Fuller & Yi Jiang & H. Hu & D. Călugăru & C. McMonagle & C. Yi & S. Roychowdhury & W. Schnelle & C. Shekhar & J. Strempfer & A. Jana & I. Vobornik & J. Dai &, 2025. "Frustrated charge density wave and quasi-long-range bond-orientational order in the magnetic kagome FeGe," Nature Communications, Nature, vol. 16(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58725-2
    DOI: 10.1038/s41467-025-58725-2
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