Thermodynamics of an alternate σ=1 and S=32 Ising chain mapped onto an effective BEG model

A linear chain of alternate Ising spins σ=1 and S=32, with bi-linear, bi-quadratic, single-ion and Zeeman interactions is studied. It is shown that this system can be mapped onto an effective BEG model, by the use of an extended decoration transformation. Exact results are obtained for the ground-state phase diagram and thermodynamical responses such as specific heat and magnetic susceptibility are shown.

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Year of publication:	2003
Authors:	Fireman, E.C. ; Cressoni, J.C. ; dos Santos, R.J.V.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 329.2003, 1, p. 147-160
Publisher:	Elsevier
Subject:	Ising model \| BEG model \| Decoration transformation \| Thermodynamics

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011060976