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Equilibrium behavior of the mixed spin-1 and spin-3/2 ising system by using the lowest approximation of the cluster variation method

M. YAZICI1

Affiliation

  1. Department of Physics, Faculty of Sciences and Arts, 7 Aralık University, Kilis, TURKEY

Abstract

We have studied equilibrium behavior of the mixed spin-1 and spin-3/2 Ising system in the absence and presence of an external magnetic field by using the lowest approximation of the cluster-variation method. We have obtained the thermal variation of the stable, dipole and quadrupolar moment order paramaters for several of coupling parameters, D/J.Some outstanding features are found in the temperature dependences of the order parameters. The phase transitions of the stable branch of the order paramaters are investiated extensively. Then we have presented stable phase diagrams of the mixed spin-1 and spin-3/2 Ising system..

Keywords

Mixed spin Ising model; Cluster variation method.

Submitted at: Oct. 25, 2010
Accepted at: Nov. 25, 2010

Citation

M. YAZICI, Equilibrium behavior of the mixed spin-1 and spin-3/2 ising system by using the lowest approximation of the cluster variation method, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 12, pp. 2437-2441 (2010)