Ising models with two-and three-spin interactions

Viktor Urumov

Physica A: Statistical Mechanics and its Applications, 1988, vol. 150, issue 1, 293-298

Abstract: Three Ising models with two- and three-spin interactions are shown to be exactly solvable. Their critical behaviour: non-universal dependence of the critical exponents on the interaction parameters in one case, absence of finite critical temperature in the second case and logarithmic singularity of the specific heat in the third one, is different from the recent conjecture that such models belong to the Baxter-Wu universality class.

Date: 1988
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:150:y:1988:i:1:p:293-298

DOI: 10.1016/0378-4371(88)90061-1

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