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Wetting transition of a nematic liquid crystal on a periodic wedge-structured substrate

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Autor: Romero Enrique, José Manuel
Patricío, Pedro
Pham, Chi Tuong
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2007
Publicado en: European Physical Journal E, 26, 97-101.
Tipo de documento: Artículo
Resumen: It is known that the wetting behaviour of a fluid is deeply altered by the presence of rough or structured substrates. We first review some simple considerations about isotropic fluids and rough substrates, and then we generalize Wenzel’s law, which assigns an effective contact angle to a droplet on a rough substrate, when the wetting layer has an ordered phase, like a nematic. We estimate the conditions for which the wetting behavior of an ordered fluid can be qualitatively different from that usually found in a simple fluid. To support our general considerations, we use the Landau-de Gennes mean field approach to investigate theoretically and numerically the wetting transition of a nematic phase on a periodic triangular structured substrate.
Cita: Romero Enrique, J.M., Patricío, P. y Pham, C.T. (2007). Wetting transition of a nematic liquid crystal on a periodic wedge-structured substrate. European Physical Journal E, 26, 97-101.
Tamaño: 130.3Kb
Formato: PDF

URI: http://hdl.handle.net/11441/64471

DOI: 10.1140/epje/i2007-10293-1

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