Spin-Peierls phases in pyrochlore antiferromagnets

dc.creatorTchernyshyov, Oleg
dc.creatorMoessner, R.
dc.creatorSondhi, S. L.
dc.date2002-04-08
dc.date.accessioned2026-07-07T02:44:57Z
dc.date.available2026-07-07T02:44:57Z
dc.descriptionIn the highly frustrated pyrochlore magnet spins form a lattice of corner sharing tetrahedra. We show that the tetrahedral ``molecule'' at the heart of this structure undergoes a Jahn-Teller distortion when lattice motion is coupled to the antiferromagnetism. We extend this analysis to the full pyrochlore lattice by means of Landau theory and argue that it should exhibit spin-Peierls phases with bond order but no spin order. We find a range of Neel phases, with collinear, coplanar and noncoplanar order. While collinear Neel phases are easiest to generate microscopically, we also exhibit an interaction that gives rise to a coplanar state instead.
dc.descriptionREVTeX 4, 14 pages, 12 figures (best viewed in color)
dc.identifierhttps://arxiv.org/abs/cond-mat/0204154
dc.identifierhttp://arxiv.org/abs/cond-mat/0204154
dc.identifierPhys. Rev. B 66, 064403 (2002)
dc.identifierdoi:10.1103/PhysRevB.66.064403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19140
dc.subjectStrongly Correlated Electrons
dc.titleSpin-Peierls phases in pyrochlore antiferromagnets
dc.typetext

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