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Depth-dependent study of time-reversal symmetry-breaking in the kagome superconductor AV3Sb5

Author

Listed:
  • J. N. Graham

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • C. Mielke III

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • D. Das

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • T. Morresi

    (European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Fondazione Bruno Kessler)

  • V. Sazgari

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • A. Suter

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • T. Prokscha

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • H. Deng

    (Southern University of Science and Technology)

  • R. Khasanov

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • S. D. Wilson

    (University of California Santa Barbara)

  • A. C. Salinas

    (University of California Santa Barbara)

  • M. M. Martins

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • Y. Zhong

    (The University of Tokyo)

  • K. Okazaki

    (The University of Tokyo)

  • Z. Wang

    (Beijing Institute of Technology)

  • M. Z. Hasan

    (Princeton University)

  • M. H. Fischer

    (Universität Zürich)

  • T. Neupert

    (Universität Zürich)

  • J. -X. Yin

    (Southern University of Science and Technology)

  • S. Sanna

    (Universitá di Bologna)

  • H. Luetkens

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • Z. Salman

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

  • P. Bonfà

    (Università di Parma)

  • Z. Guguchia

    (PSI Center for Neutron and Muon Sciences, Paul Scherrer Institut)

Abstract

The breaking of time-reversal symmetry (TRS) in the normal state of kagome superconductors AV3Sb5 stands out as a significant feature, but its tunability is unexplored. Using low-energy muon spin rotation and local field numerical analysis, we study TRS breaking as a function of depth in single crystals of RbV3Sb5 (with charge order) and Cs(V0.86Ta0.14)3Sb5 (without charge order). In the bulk of RbV3Sb5 (>33 nm from the surface), we observed an increase in the internal magnetic field width in the charge-ordered state. Near the surface (

Suggested Citation

  • J. N. Graham & C. Mielke III & D. Das & T. Morresi & V. Sazgari & A. Suter & T. Prokscha & H. Deng & R. Khasanov & S. D. Wilson & A. C. Salinas & M. M. Martins & Y. Zhong & K. Okazaki & Z. Wang & M. Z, 2024. "Depth-dependent study of time-reversal symmetry-breaking in the kagome superconductor AV3Sb5," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52688-6
    DOI: 10.1038/s41467-024-52688-6
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