Magnetic and thermal properties of a one-dimensional spin-1 model

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dc.creatorMancini, F.
dc.creatorMancini, F. P.
dc.date2008-07-14
dc.date.accessioned2026-07-07T10:01:12Z
dc.date.available2026-07-07T10:01:12Z
dc.descriptionWe study the one-dimensional S=1 Blume-Emery-Griffiths model. Upon transforming the spin model into an equivalent fermionic model, we provide the exact solution within the Green's function and equations of motion formalism. We show that the relevant response functions as well as thermodynamic quantities can be determined, in the whole parameters space, in terms of a finite set of local correlators. Furthermore, considering the case of an antiferromagnetic chain with single-ion anisotropy in the presence of an external magnetic field, we find three plateaus in the magnetization curve; in the neighborhood of the endpoints of the intermediate plateau, the specific heat shows a double peak structure.
dc.description7 pages, 4 figures. This paper is dedicated to Professor Igor Stasyuk on the occasion of his 70th birthday
dc.identifierhttps://arxiv.org/abs/0807.2177
dc.identifierhttp://arxiv.org/abs/0807.2177
dc.identifierConden. Matter Phys. 11, 543 (2008)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168555
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleMagnetic and thermal properties of a one-dimensional spin-1 model
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