Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/34367
COMPARTIR / EXPORTAR:
SHARE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Theory and simulation of the confined Lebwohl-Lasher model |
Autor: | Marguta, Ramona G. CSIC ORCID; Martínez-Ratón, Y.; Almarza, Noé G. CSIC ORCID; Velasco, Enrique CSIC ORCID | Palabras clave: | liquid crystal confinement |
Fecha de publicación: | 5-abr-2011 | Editor: | American Physical Society | Citación: | Physical Review - Section E - Statistical Nonlinear and Soft Matter Physics | Resumen: | We discuss the Lebwohl-Lasher model of nematic liquid crystals in a confined geometry, using Monte Carlo simulation and mean-field theory. A film of material is sandwiched between two planar, parallel plates that couple to the adjacent spins via a surface strength s . We consider the cases where the favored alignments at the two walls are the same (symmetric cell) or different (asymmetric cell). In the latter case, we demonstrate the existence of a single phase transition in the slab for all values of the cell thickness. This transition has been observed before in the regime of narrow cells, where the two structures involved correspond to different arrangements of the nematic director. By studying wider cells, we show that the transition is in fact the usual isotropic-to-nematic (capillary) transition under confinement in the case of antagonistic surface forces. We show results for a wide range of values of film thickness and discuss the phenomenology using a mean-field model. | Descripción: | Copyright 2011 American Chemical Society | Versión del editor: | http://link.aps.org/doi/10.1103/PhysRevE.83.041701 | URI: | http://hdl.handle.net/10261/34367 |
Aparece en las colecciones: | (IQF) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Hybrid_Lebwhol-Lasher.pdf | 772,06 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
Page view(s)
322
checked on 23-abr-2024
Download(s)
201
checked on 23-abr-2024
Google ScholarTM
Check
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.