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Journal of Physics C Solid State Physics

Two phase transitions in the Ashkin-Teller model

Fa Yueh Wu, Ken‐Yu Lin

Published May 7, 1974• 98 citations
Publisher

Abstract

Assuming a continuous dependence of the criticality on the energy parameters, it is conjectured that the Ashkin-Teller model has in general two phase transitions. The two critical points coalesce into a single one when the two middle energies in the model are degenerate.
DOI
10.1088/0022-3719/7/9/002

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