New polarization effect and collective excitation in S=1/2 quasi 1D antiferromagnetic quantum spin chain

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dc.creatorDemishev, S. V.
dc.creatorSemeno, A. V.
dc.creatorOhta, H.
dc.creatorOkubo, S.
dc.creatorTarasenko, I. E.
dc.creatorIshchenko, T. V.
dc.creatorSluchanko, N. E.
dc.date2006-09-01
dc.date.accessioned2026-07-07T07:23:24Z
dc.date.available2026-07-07T07:23:24Z
dc.descriptionAnomalous polarization characteristics of magnetic resonance in CuGeO3 doped with 2% of Co impurity are reported. For the Faraday geometry this mode is damped for the microwave field Bw aligned along a certain crystallographic direction showing that the character of magnetic oscillation differs from the standard spin precession. The observed resonance coexists with the ESR on Cu2+ chains and argued not to be caused by "impurity" EPR, as previously claimed, but to correspond to a previously unknown collective mode of magnetic oscillations in S=1/2 AF quantum spin chain.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0609022
dc.identifierhttp://arxiv.org/abs/cond-mat/0609022
dc.identifierPis'ma v ZhETF, vol.84, iss.5, pp.305-309 (2006)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/115965
dc.subjectStrongly Correlated Electrons
dc.titleNew polarization effect and collective excitation in S=1/2 quasi 1D antiferromagnetic quantum spin chain
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