Heat capacity of the quantum magnet TiOCl

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dc.creatorHemberger, J.
dc.creatorHoinkis, M.
dc.creatorKlemm, M.
dc.creatorSing, M.
dc.creatorClaessen, R.
dc.creatorHorn, S.
dc.creatorLoidl, A.
dc.date2005-01-21
dc.date.accessioned2026-07-07T06:26:48Z
dc.date.available2026-07-07T06:26:48Z
dc.descriptionMeasurements of the heat capacity C(T,H) of the one-dimensional quantum magnet TiOCl are presented for temperatures 2K < T < 300K and magnetic fields up to 5T. Distinct anomalies at 91K and 67K signal two subsequent phase transitions. The lower of these transitions clearly is of first order and seems to be related to the spin degrees of freedom. The transition at 92K probably involves the lattice and/or orbital moments. A detailed analysis of the data reveals that the entropy change through both transitions is surprisingly small (~ 0.1R), pointing to the existence strong fluctuations well into the non-ordered high-temperature phase. No significant magnetic field dependence was detected.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0501517
dc.identifierhttp://arxiv.org/abs/cond-mat/0501517
dc.identifierPhys. Rev. B 72, 012420 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.012420
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97222
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleHeat capacity of the quantum magnet TiOCl
dc.typetext

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