Octupolar ordering of classical kagome antiferromagnets in two and three dimensions

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dc.creatorZhitomirsky, M. E.
dc.date2008-05-06
dc.date2008-09-16
dc.date.accessioned2026-07-07T10:05:55Z
dc.date.available2026-07-07T10:05:55Z
dc.descriptionClassical Heisenberg antiferromagnets on two-dimensional kagome and three-dimensional hyperkagome lattices are investigated by Monte Carlo simulations. For both models the symmetry-breaking states at low temperatures are described by non-zero octupole moments or third-rank spin tensor order parameters. In the case of the two-dimensional kagome antiferromagnet, a sharp crossover into a coplanar state takes place at T_k ~ 0.004J, which we attribute to proliferation of fractional vortices. The three-dimensional model exhibits a first-order transition at T_c ~ 0.002J into a phase with critical spin correlations, which possesses a long-range order of octupole moments.
dc.description12+ pages, 14 figures, accepted version
dc.identifierhttps://arxiv.org/abs/0805.0676
dc.identifierhttp://arxiv.org/abs/0805.0676
dc.identifierPhys. Rev. B 78, 094423 (2008).
dc.identifierdoi:10.1103/PhysRevB.78.094423
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170153
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleOctupolar ordering of classical kagome antiferromagnets in two and three dimensions
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