Effect of random crystal field on semi infinite system

M.R. Benayad, A. Benyoussef and A. El Kenz

Physica A: Statistical Mechanics and its Applications, 2012, vol. 391, issue 12, 3467-3476

Abstract: The effect of random crystal-field on the magnetic properties of the semi-infinite system is investigated by the use of the mean field approximation. In this system, the sites of the surface and bulk are occupied by spin- 1/2 and spin-1, respectively. The appearance of the partly ferromagnetic phase, in bulk, gives rise to different types of topology of phase diagrams. The system exhibits tricritical and multicritical points.

Keywords: Semi-infinite; Random crystal-field; Ferromagnetism; Tricritical point; Multicritical point; Mean field approximation (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:391:y:2012:i:12:p:3467-3476

DOI: 10.1016/j.physa.2012.01.044

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