Phase transition and magnetic properties of a decorated Ising film: Monte Carlo and effective field treatments

M. Boughrara and M. Kerouad

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 24, 6105-6114

Abstract: A Monte Carlo Simulation (MCS) has been used to study critical behavior and magnetic properties of a decorated Ising film on a cubic lattice structure. The system consists of two magnetic atoms species A and B with σA=1/2 and SB=1, where the B sites decorate the bonds between A sites. The dependence of the phase diagram on the axial zero-field splitting parameter, the exchange interactions and the thickness of the film are studied. We found that the system exhibits a double reentrant phenomenon and one or two compensation points. MCS results are compared to those obtained by using the effective field theory (EFT) based on the use of a probability distribution technique. However, MCS predicts the same topology of the phase diagrams as the effective field theory.

Keywords: Monte Carlo Simulation; Effective field theory; Phase diagram; Decorated film; Axial zero-field splitting parameter; Magnetic properties (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:24:p:6105-6114

DOI: 10.1016/j.physa.2008.07.006

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