Quantum Phase Transition in the SU(4) Spin-Orbital Model on the Triangular Lattice

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dc.creatorPenc, Karlo
dc.creatorMambrini, Matthieu
dc.creatorFazekas, Patrik
dc.creatorMila, Frederic
dc.date2002-12-10
dc.date.accessioned2026-07-07T02:48:38Z
dc.date.available2026-07-07T02:48:38Z
dc.descriptionMotivated by the absence of cooperative Jahn-Teller effect in LiNiO2 and BaVS3, two layered oxides with triangular planes, we study the SU(4) symmetric spin-orbital model on the triangular lattice. Upon reducing the next-nearest neighbour coupling, we show that the system undergoes a quantum phase transition to a liquid phase. A variational approach to this liquid phase shows that simple types of long-range correlations are suppressed, suggesting that it is stable against lattice distortions.
dc.description5 pages, 5 figures, RevTex4
dc.identifierhttps://arxiv.org/abs/cond-mat/0212211
dc.identifierhttp://arxiv.org/abs/cond-mat/0212211
dc.identifierPhys. Rev. B 68, 012408 (2003)
dc.identifierdoi:10.1103/PhysRevB.68.012408
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20482
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleQuantum Phase Transition in the SU(4) Spin-Orbital Model on the Triangular Lattice
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