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Interplay between anchoring and wetting at a nematic-substrate interface


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Opened Access Interplay between anchoring and wetting at a nematic-substrate interface

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Author: Rodríguez Ponce, Inmaculada
Romero Enrique, José Manuel
Velasco, Enrique
Mederos, Luis
Rull Fernández, Luis Felipe
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 1999
Published in: Physical Review Letters, 82 (13), 2697-2700
Document type: Article
Abstract: We use a generalized van der Waals molecular theory to study a model substrate-nematic interface in the regime of complete wetting and in a situation of competing interactions at the interface. The analysis shows that an anchoring transition between states with planar and homeotropic director configuration may play the role of a prewetting transition, and that reentrant anchoring must generally occur. As a result one expects complete wetting in a finite temperature range. The study provides a general context within which anchoring and wetting phenomena can be related
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