Tricriticality and Reentrance in a Naive Spin-Glass Model
Disordered Systems and Neural Networks
2015-05-19 v1
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.
Keywords
Cite
@article{arxiv.1005.3334,
title = {Tricriticality and Reentrance in a Naive Spin-Glass Model},
author = {F. A. da Costa},
journal= {arXiv preprint arXiv:1005.3334},
year = {2015}
}
Comments
12 pages, 1 figure