Thermodynamical properties of the random field mixed spin Ising model

N. Benayad, A. Fathi and L. Khaya

Physica A: Statistical Mechanics and its Applications, 2001, vol. 300, issue 1, 225-244

Abstract: A theoretical study of a mixed spin Ising system consisting of spin-1/2 and spin-1 with a random field is studied by the use of the finite cluster approximation within the framework of a single-site cluster theory. In this approach, the phase diagrams and magnetizations are investigated for the simple cubic lattice when the random field is bimodally and trimodally distributed. The internal energy, specific heat and susceptibility are also calculated for both kinds of the probability distributions.

Keywords: Mixed spins; Random fields; Phase diagrams; Magnetizations; Specific heat; Susceptibility (search for similar items in EconPapers)
Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:300:y:2001:i:1:p:225-244

DOI: 10.1016/S0378-4371(01)00322-3

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