Journal of Physics C Solid State Physics

Two phase transitions in triplet Ising models

Fa Yueh Wu

Published Jan 28, 1977• 9 citations

Abstract

It is shown that the three-spin Ising model on a triangulated dice lattice is equivalent to an Ashkin-Teller model. It is concluded from the expected critical behaviour of the Ashkin-Teller model that the triplet model exhibits two phase transitions. Generalization of the consideration to other lattices and a suggestion on the possible order parameters associated with the transitions are given.

DOI: 10.1088/0022-3719/10/2/001

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