| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 977721 | Physica A: Statistical Mechanics and its Applications | 2015 | 14 Pages |
Abstract
Spin correlation identities for the Ashkin-Teller model are derived. From the correlation identities effective field approximation results for the magnetization, the specific heat, the critical frontiers and tricritical points are obtained. First-order transitions in three-dimensional lattices are predicted. The results of the effective field approximation are compared to those obtained by other methods.
Keywords
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Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Jander P. Santos, F.C. Sá Barreto,