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An exact chiral amorphous spin liquid

Cassella, G. ; d’Ornellas, P. ; Hodson, T. ; Natori, W. M. H. ; Knolle, J.

Nature Commun, 2023-10, Vol.14 (1), p.6663-6663, Article 6663 [Periódico revisado por pares]

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Título:
An exact chiral amorphous spin liquid
Autor: Cassella, G. ; d’Ornellas, P. ; Hodson, T. ; Natori, W. M. H. ; Knolle, J.
Assuntos: Amorphous materials ; Condensed Matter ; Coordination numbers ; Crystal lattices ; Crystals ; Liquid phases ; Phase diagrams ; Phase transitions ; Physics ; Spin liquid ; Topological insulators
É parte de: Nature Commun, 2023-10, Vol.14 (1), p.6663-6663, Article 6663
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
Descrição: Abstract Topological insulator phases of non-interacting particles have been generalized from periodic crystals to amorphous lattices, which raises the question whether topologically ordered quantum many-body phases may similarly exist in amorphous systems? Here we construct a soluble chiral amorphous quantum spin liquid by extending the Kitaev honeycomb model to random lattices with fixed coordination number three. The model retains its exact solubility but the presence of plaquettes with an odd number of sides leads to a spontaneous breaking of time reversal symmetry. We unearth a rich phase diagram displaying Abelian as well as a non-Abelian quantum spin liquid phases with a remarkably simple ground state flux pattern. Furthermore, we show that the system undergoes a finite-temperature phase transition to a conducting thermal metal state and discuss possible experimental realisations.
Editor: London: Nature Publishing Group
Idioma: Inglês

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