Surface Phase Transitions in Two Dimensions: Metastability and Reentrance

Patrick, A. E. and Upton, P. J. (1996) Surface Phase Transitions in Two Dimensions: Metastability and Reentrance. (Preprint)

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Abstract

A two-dimensional Ising model on an infinite strip is studied with boundary conditions inducing a long contour with its end points rooted to one edge. A surface field acts along the other edge. When an appropriate thermodynamic limit is taken, the model supports three macroscopic phases specified, apart from the value of the spontaneous magnetization, by the shape of the long contour on a macroscopic scale. Phase re-entrance is found as well as metastability. Simple entropic arguments are given which illuminate the origin of this re-entrance and suggest that this phenomenon is common for a wide class of models.

Item Type: Article
Divisions: School of Theoretical Physics > Preprints
Date Deposited: 19 Jun 2018 14:06
Last Modified: 18 Jul 2018 11:20
URI: http://dair.dias.ie/id/eprint/662

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