Broken parity and a chiral ground state in the frustrated magnet CdCr2O4

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dc.creatorChern, Gia-Wei
dc.creatorFennie, C. J.
dc.creatorTchernyshyov, O.
dc.date2006-06-01
dc.date2006-07-21
dc.date.accessioned2026-07-07T07:12:21Z
dc.date.available2026-07-07T07:12:21Z
dc.descriptionWe present a model describing the lattice distortion and incommensurate magnetic order in the spinel CdCr2O4, a good realization of the Heisenberg "pyrochlore" antiferromagnet. The magnetic frustration is relieved through the spin-Peierls distortion of the lattice involving a phonon doublet with odd parity. The distortion stablizes a collinear magnetic order with the propagation wavevector q=2π(0,0,1). The lack of inversion symmetry makes the crystal structure chiral. The handedness is transferred to magnetic order by the relativistic spin-orbit coupling: the collinear state is twisted into a long spiral with the spins in the ac plane and q shifted to 2π(0,δ,1).
dc.descriptionIncremental changes in response to referee reports
dc.identifierhttps://arxiv.org/abs/cond-mat/0606039
dc.identifierhttp://arxiv.org/abs/cond-mat/0606039
dc.identifierPhys. Rev. B 74, 060405(R) (2006)
dc.identifierdoi:10.1103/PhysRevB.74.060405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/112055
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleBroken parity and a chiral ground state in the frustrated magnet CdCr2O4
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