F. A. da Costa. Tricriticality and Reentrance in a Naive Spin-glass Model
Submitted on: Jun 12, 2012, 19:32:37
Natural Sciences / Physics / Particle physics
Description: 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.
The abstract of this article has been published in the "Intellectual Archive Bulletin" , June 2012, ISSN 1929-1329.
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