Artículo
Wetting and interfacial order at nematic free surfaces
Autor/es | Martín del Río, Elvira Fátima
Telo Da Gama, Margarida Maria Miguel Agustino, Enrique de Rull Fernández, Luis Felipe |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 1996-07-20 |
Fecha de depósito | 2017-07-18 |
Publicado en |
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Resumen | We apply a density-functional theory to the free surface of a model liquid crystal, to investigate the orientational order at the nematic free surface of systems exhibiting orientational wetting at the isotropic liquid-vapour ... We apply a density-functional theory to the free surface of a model liquid crystal, to investigate the orientational order at the nematic free surface of systems exhibiting orientational wetting at the isotropic liquid-vapour interface. It is shown that the theory accounts for the growth of the surface ordered layer which develops at the nematic-vapour interface, as the temperature increases up to the triple point, as was recently reported for 4-cyano-4′-n-alkyl-biphenyls. We have found a correlation between the growth of this layer and the non-monotonic temperature dependence of the interfacial tension below the triple point. The theoretical results are in excellent agreement with the results for 8CB. |
Agencias financiadoras | Dirección General de Investigación Científica y Técnica (DGICYT). España |
Identificador del proyecto | PB91-0602 |
Cita | Martín del Río, E.F., Telo da Gama, a., Miguel Agustino, E.d. y Rull Fernández, L.F. (1996). Wetting and interfacial order at nematic free surfaces. Europhysics Letters, 35 (3), 189-194. |
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