Entropy and free energy of the spin glass in the random-bond ising model on the square lattice at finite temperatures

The free energy, the energy, and the entropy of the random-Ising mixture with the ferro- and antiferromagnetic bonds, of which the concentrations are 12, are investigated by the cluster variational method in the pair approximation and that in the square approximation. At T = 0, they reproduce the values of these quantities in the previous papers.

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Year of publication:	1982
Authors:	Miyamoto, Nahomi ; Katsura, Shigetoshi
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 111.1982, 1, p. 1-16
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010874960