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Tricritical wedge filling transitions with short-ranged forces


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Author: Romero Enrique, José Manuel
Parry, Andrew O.
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2005
Document type: Article
Abstract: We show that the 3D wedge filling transition in the presence of short-ranged interactions can be first order or second order depending on the strength of the line tension associated with the wedge bottom. This fact implies the existence of a tricritical point characterized by a short-distance expansion which differs from the usual continuous filling transition. Our analysis is based on an effective one-dimensional model for the 3D wedge filling, which arises from the identification of the breather modes as the only relevant interfacial fluctuations. From such analysis we find a correspondence between continuous 3D filling at bulk coexistence and 2D wetting transitions with random-bond disorder.
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DOI: 10.1088/0953-8984/17/45/038

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