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arXiv · 1005.3334

Tricriticality and Reentrance in a Naive Spin-Glass Model

F. A. da Costa
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Abstract

In this paper a spin-1 spin-glass model under the presence of a uniform crystal field is investigated. It is shown that the model presents both continuous and first-order phase transition separated by a tricritical point. The phase diagram is obtained within the replica-symmetric solution and exhibits reentrance phenomena at low temperatures. Possibly it is the simplest model which can describe inverse freezing phenomena.

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F. A. da Costa. 2010-05-18. Tricriticality and Reentrance in a Naive Spin-Glass Model. https://doi.org/10.1103/physrevb.82.052402

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