Theory and simulation of the confined Lebwohl-Lasher model

Copyright 2011 American Chemical Society

Detalles Bibliográficos
Autores: Marguta, Ramona G., Martínez-Ratón, Y., Almarza, Noé G., Velasco, Enrique
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/34367
Acceso en línea:http://hdl.handle.net/10261/34367
Access Level:acceso abierto
Palabra clave:liquid crystal
confinement
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spelling Theory and simulation of the confined Lebwohl-Lasher modelMarguta, Ramona G.Martínez-Ratón, Y.Almarza, Noé G.Velasco, Enriqueliquid crystalconfinementCopyright 2011 American Chemical SocietyWe 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.Dirección General de Investigación Cient-ífica y Técnica. Grants: Nos. MAT2007-65711-C04-04, MOSAICO, FIS2007-65869-C03-01, FIS2008-05865-C02-02, FIS2010-22047-C05-01, and FIS2010-22047-C05-04. Dirección General de Universidades e Investigación de la Comunidad de Madrid. Grant No. S2009/ESP-1691 and Program MODELICO-CM.Peer reviewedAmerican Physical Society201120112011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/34367reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://link.aps.org/doi/10.1103/PhysRevE.83.041701info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/343672026-05-22T06:33:51Z
dc.title.none.fl_str_mv Theory and simulation of the confined Lebwohl-Lasher model
title Theory and simulation of the confined Lebwohl-Lasher model
spellingShingle Theory and simulation of the confined Lebwohl-Lasher model
Marguta, Ramona G.
liquid crystal
confinement
title_short Theory and simulation of the confined Lebwohl-Lasher model
title_full Theory and simulation of the confined Lebwohl-Lasher model
title_fullStr Theory and simulation of the confined Lebwohl-Lasher model
title_full_unstemmed Theory and simulation of the confined Lebwohl-Lasher model
title_sort Theory and simulation of the confined Lebwohl-Lasher model
dc.creator.none.fl_str_mv Marguta, Ramona G.
Martínez-Ratón, Y.
Almarza, Noé G.
Velasco, Enrique
author Marguta, Ramona G.
author_facet Marguta, Ramona G.
Martínez-Ratón, Y.
Almarza, Noé G.
Velasco, Enrique
author_role author
author2 Martínez-Ratón, Y.
Almarza, Noé G.
Velasco, Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv liquid crystal
confinement
topic liquid crystal
confinement
description Copyright 2011 American Chemical Society
publishDate 2011
dc.date.none.fl_str_mv 2011
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/34367
url http://hdl.handle.net/10261/34367
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://link.aps.org/doi/10.1103/PhysRevE.83.041701
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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