Thermally activated Peierls dimerization in ferromagnetic spin chains

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dc.creatorSirker, J.
dc.creatorHerzog, A.
dc.creatorOles, A. M.
dc.creatorHorsch, P.
dc.date2008-07-29
dc.date.accessioned2026-07-07T10:08:39Z
dc.date.available2026-07-07T10:08:39Z
dc.descriptionWe demonstrate that a Peierls dimerization can occur in ferromagnetic spin chains activated by thermal fluctuations. The dimer order parameter and entanglement measures are studied as functions of the modulation of the magnetic exchange interaction and temperature, using a spin-wave theory and the density-matrix renormalization group. We discuss the case where a periodic modulation is caused by spin-phonon coupling and the case where electronic states effectively induce such a modulation. The importance of the latter for a number of transition metal oxides is highlighted.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0807.4693
dc.identifierhttp://arxiv.org/abs/0807.4693
dc.identifierPhys. Rev. Lett. 101, 157204 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.157204
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171067
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleThermally activated Peierls dimerization in ferromagnetic spin chains
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