Gap excitations in a four-leg Heisenberg spin tube antiferromagnet

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dc.creatorGarlea, V. O.
dc.creatorZheludev, A.
dc.creatorRegnault, L. -P.
dc.creatorChung, J. -H.
dc.creatorQiu, Y.
dc.creatorBoehm, M.
dc.creatorHabicht, K.
dc.creatorMeissner, M.
dc.date2007-10-03
dc.date2007-11-14
dc.date.accessioned2026-07-07T08:42:31Z
dc.date.available2026-07-07T08:42:31Z
dc.descriptionInelastic neutron scattering is used to investigate magnetic excitations in the quasi-one-dimensional quantum spin-liquid system Cu2Cl4 D8C4SO2. Contrary to previously conjectured models that relied on bond-alternating nearest neighbor interactions in the spin chains, the dominant interactions are actually next-nearest-neighbor in-chain antiferromagnetic couplings. The appropriate Heisenberg Hamiltonian is equivalent to that of a S = 1/2 4-leg spin-tube with almost perfect one dimensionality and no bond alternation. A partial geometric frustration of rung interactions induces a small incommensurability of short-range spin correlations.
dc.identifierhttps://arxiv.org/abs/0710.0891
dc.identifierhttp://arxiv.org/abs/0710.0891
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141987
dc.subjectStrongly Correlated Electrons
dc.titleGap excitations in a four-leg Heisenberg spin tube antiferromagnet
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