Spin compensation temperatures in the mean-field approximation of a mixed spin-2 and spin-5/2 Ising ferrimagnetic system

Hadey K. Mohamad, E.P. Domashevskaya and A.F. Klinskikh

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 22, 4713-4718

Abstract: The magnetic behaviors of a mixed spin-2 and spin-5/2 Ising ferrimagnetic system on a square lattice are studied with the mean-field approximation (MFA) based on the Bogoliubov inequality for the free energy. A Landau expansion of the free energy in the order parameter is also described in this work. In particular, we investigate the effect of a single-ion anisotropy on the compensation phenomenon.

Keywords: Mixed-spin Ising model; Ferrimagnet; Single-ion anisotropy; Compensation points (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:22:p:4713-4718

DOI: 10.1016/j.physa.2009.08.014

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