Two Step Restoration of SU(2) Symmetry in a Frustrated Ring-Exchange Magnet

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dc.creatorLaeuchli, A.
dc.creatorDomenge, J. C.
dc.creatorLhuillier, C.
dc.creatorSindzingre, P.
dc.creatorTroyer, M.
dc.date2004-12-01
dc.date2005-09-23
dc.date.accessioned2026-07-07T06:18:45Z
dc.date.available2026-07-07T06:18:45Z
dc.descriptionWe demonstrate the existence of a spin-nematic, moment-free phase in a quantum four-spin ring exchange model on the square lattice. This unusual quantum state is created by the interplay of frustration and quantum fluctuations which lead to a partial restoration of SU(2) symmetry when going from a four-sublattice orthogonal biaxial Neel order to this exotic uniaxial magnet. A further increase of frustration drives a transition to a fully gapped SU(2) symmetric valence bond crystal.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0412035
dc.identifierhttp://arxiv.org/abs/cond-mat/0412035
dc.identifierPhys. Rev. Lett. 95, 137206 (2005)
dc.identifierdoi:10.1103/PhysRevLett.95.137206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/94841
dc.subjectStrongly Correlated Electrons
dc.titleTwo Step Restoration of SU(2) Symmetry in a Frustrated Ring-Exchange Magnet
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