Quasi-universal finite-$T$ scaling in gapped one-dimensional quantum magnets

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dc.creatorZheludev, A.
dc.creatorGarlea, V. O.
dc.creatorRegnault, L. -P.
dc.creatorManaka, H.
dc.creatorTsvelik, A.
dc.creatorChung, J. -H.
dc.date2007-11-26
dc.date2008-03-14
dc.date.accessioned2026-07-07T09:26:30Z
dc.date.available2026-07-07T09:26:30Z
dc.descriptionTemperature dependencies of gap energies and magnon lifetimes are measured in the quasi-1-dimensional S=1/2 gapped quantum magnets IPA-CuCl3 and Sul-Cu2Cl4 using inelastic neutron scattering. The results are compared to those found in literature for S=1 Haldane spin chain materials and to theoretical calculations for the O(3)- and O(N)- quantum non-linear sigma-models. It is found that when the T=0 energy gap Delta is used as the temperature scale, all experimental and theoretical curves are identical to within system-dependent but temperature-independent scaling factors of the order of unity. This quasi-universality extends over a surprising broad T range, at least up to kappa T ~ 1.5 Delta.
dc.description4 pages, 4 figures, accepted to PRL
dc.identifierhttps://arxiv.org/abs/0711.4094
dc.identifierhttp://arxiv.org/abs/0711.4094
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156774
dc.subjectStrongly Correlated Electrons
dc.titleQuasi-universal finite-$T$ scaling in gapped one-dimensional quantum magnets
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