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Phase diagram of a modified Ashkin-Teller model

We add a term to the original Ashkin-Teller Hamiltonian in order to reduce the degeneracy. It is shoen that a certain class of terms all lead to the same Hamiltonian. The phase diagram of the isotropic model is discussed in the framework of mean field theory. It exhibits a wealth of critical phenomena.
Year of publication:
1995
Authors: Pawlicki, P. ; Rogiers, J.
Published in:
Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 214.1995, 2, p. 277-286
Publisher: Elsevier
Type of publication: Article
Source:
Persistent link: https://www.econbiz.de/10010587594
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