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Unveiling the S=3/2 Kitaev honeycomb spin liquids

Jin, Hui-Ke ; Natori, W. M. H. ; Pollmann, F. ; Knolle, J.

Nature Commun, 2022-07, Vol.13 (1), p.3813-3813, Article 3813 [Periódico revisado por pares]

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Título:
Unveiling the S=3/2 Kitaev honeycomb spin liquids
Autor: Jin, Hui-Ke ; Natori, W. M. H. ; Pollmann, F. ; Knolle, J.
Assuntos: Anisotropy ; Fermions ; General Physics ; Hilbert space ; Liquids ; Mathematical models ; Mean field theory ; Numerical methods ; Partons ; Perturbation theory ; Phase diagrams ; Physics ; Representations ; Spin liquid
É parte de: Nature Commun, 2022-07, Vol.13 (1), p.3813-3813, Article 3813
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Abstract The S=3/2 Kitaev honeycomb model (KHM) is a quantum spin liquid (QSL) state coupled to a static Z 2 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 Z 2 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.
Editor: London: Nature Publishing Group
Idioma: Inglês

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