A spin-one Ising model on the Bethe lattice

K.G. Chakraborty and T. Morita

Physica A: Statistical Mechanics and its Applications, 1985, vol. 129, issue 2, 415-422

Abstract: We study the statistical mechanics of spin-one Ising models on the Bethe lattice assuming that the spins interact by dipolar and quadrupolar interactions. An exact calculation of the properties of the system is performed on the basis of the general formulation of Morita. An exact expression for the Curie temperature is derived and the results are found to be in agreement with those of Obokata and Oguchi who utilized a generalized Bethe approximation to a spin-one Ising system. The nature of variation of the Curie temperature with respect to the change of quadrupolar exchange is discussed for various coordination numbers and the results agree qualitatively with the earlier works. The temperature variation of both dipolar and quadrupolar moments is studied.

Date: 1985
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:129:y:1985:i:2:p:415-422

DOI: 10.1016/0378-4371(85)90177-3

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