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Susceptibilities of the S=12 XY model on the square lattice at T = 0

โœ Scribed by J. Oitmaa; D.D. Betts; L.G. Marland

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
198 KB
Volume
79
Category
Article
ISSN
0375-9601

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๐Ÿ“œ SIMILAR VOLUMES

On the derivation and analysis of the sp
On the derivation and analysis of the spin S XY-model susceptibility series expansions
โœ R. Dekeyser; A.J. Guttmann; J. Rogiers; I. van Hoovels ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 496 KB

We have derived 10th order series expansions for the free energy and 9th order ones for the fluctuation of the order parameter in the spin-S XY-model on the f,c.c, lattice for S = ~, 1, 3, 2, 3, 4, 6 and 8. Confluent singularity analyses of the fluctuation series confirm the universality hypothesis,

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The bond-random (-tJ) Ising model in the square lattice is considered in the square cluster approximation. The boundary between the ferromagnetic and spin-glass states at T = 0 is obtained as the transition point from the asymmetric distribution of the effective fields to the symmetric distribution.