Repositorio de producción científica de la Universidad de Sevilla

Filling and wetting transitions of nematic liquid crystals on sinusoidal substrates

Opened Access Filling and wetting transitions of nematic liquid crystals on sinusoidal substrates

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Patricio, Pedro
Silvestre, Nuno M.
Pham, Chi Tuong
Romero Enrique, José Manuel
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2011
Publicado en: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 84 (2), 021701-1/ 021701-8
Tipo de documento: Artículo
Resumen: Close to sinusoidal substrates, simple fluids may undergo a filling transition, in which the fluid passes from a dry to a filled state, where the interface remains unbent but bound to the substrate. Increasing the surface field, the interface unbinds and a wetting transition occurs. We show that this double-transition sequence may be strongly modified in the case of ordered fluids, such as nematic liquid crystals. Depending on the preferred orientation of the nematic molecules at the structured substrate and at the isotropic-nematic interface, the filling transition may not exist, and the fluid passes directly from a dry to a complete-wet state, with the interface far from the substrate. More interestingly, in other situations, the complete wetting transition may be prevented, and the fluid passes from a dry to a filled state, and remains in this configuration, with the interface always attached to the substrate, even for very large surface fields. Both transitions are observe...
[Ver más]
Tamaño: 386.1Kb
Formato: PDF

URI: http://hdl.handle.net/11441/39240

DOI: http://dx.doi.org/10.1103/PhysRevE.84.021701

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones