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Unveiling the S=3/2 Kitaev honeycomb spin liquids

Author

Listed:
  • Hui-Ke Jin

    (Technische Universität München)

  • W. M. H. Natori

    (Institute Laue-Langevin
    Blackett Laboratory, Imperial College London)

  • F. Pollmann

    (Technische Universität München
    Munich Center for Quantum Science and Technology (MCQST))

  • J. Knolle

    (Technische Universität München
    Blackett Laboratory, Imperial College London
    Munich Center for Quantum Science and Technology (MCQST))

Abstract

The S=3/2 Kitaev honeycomb model (KHM) is a quantum spin liquid (QSL) state coupled to a static Z2 gauge field. Employing an SO(6) Majorana representation of spin3/2’s, we find an exact representation of the conserved plaquette fluxes in terms of static Z2 gauge fields akin to the S=1/2 KHM which enables us to treat the remaining interacting matter fermion sector in a parton mean-field theory. We uncover a ground-state phase diagram consisting of gapped and gapless QSLs. Our parton description is in quantitative agreement with numerical simulations, and is furthermore corroborated by the addition of a [001] single ion anisotropy (SIA) which continuously connects the gapless Dirac QSL of our model with that of the S=1/2 KHM. In the presence of a weak [111] SIA, we discuss an emergent chiral QSL within a perturbation theory.

Suggested Citation

  • Hui-Ke Jin & W. M. H. Natori & F. Pollmann & J. Knolle, 2022. "Unveiling the S=3/2 Kitaev honeycomb spin liquids," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31503-0
    DOI: 10.1038/s41467-022-31503-0
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    References listed on IDEAS

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    1. Ioannis Rousochatzakis & Yuriy Sizyuk & Natalia B. Perkins, 2018. "Quantum spin liquid in the semiclassical regime," Nature Communications, Nature, vol. 9(1), pages 1-11, December.
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