Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/3637
Título: Simulation and theory of hybrid aligned liquid crystal films
Autor: Teixeira, Paulo Ivo Cortez
Barmes, F.
Anquetil-Deck, C.
Cleaver, D. J.
Palavras-chave: Density functional theory
Equations of state
Liquid crystals
Liquid films
Liquid theory
Molecular orientation
Monte Carlo methods
Data: 26-Jan-2009
Editora: Amer Physical Soc
Citação: TEIXEIRA, P. I. C.; BARMES, F.; ANQUETIL-DECK, C.; CLEAVER, D. J. - Simulation and theory of hybrid aligned liquid crystal films. Physical Review E. ISSN 1536-3755. Vol. 79, nr 1 (2009), p. 011709-1-011709-9.
Relatório da Série N.º: ;011709
Resumo: We present a study of the effects of nanoconfinement on a system of hard Gaussian overlap particles interacting with planar substrates through the hard-needle-wall potential, extending earlier work by two of us [D. J. Cleaver and P. I. C. Teixeira, Chem. Phys. Lett. 338, 1 (2001)]. Here, we consider the case of hybrid films, where one of the substrates induces strongly homeotropic anchoring, while the other favors either weakly homeotropic or planar anchoring. These systems are investigated using both Monte Carlo simulation and density-functional theory, the latter implemented at the level of Onsager's second-virial approximation with Parsons-Lee rescaling. The orientational structure is found to change either continuously or discontinuously depending on substrate separation, in agreement with earlier predictions by others. The theory is seen to perform well in spite of its simplicity, predicting the positional and orientational structure seen in simulations even for small particle elongations.
Peer review: yes
URI: http://hdl.handle.net/10400.21/3637
ISSN: 1539-3755
1550-2376
Versão do Editor: http://www.ncbi.nlm.nih.gov/pubmed/19257054
Aparece nas colecções:ISEL - Física - Artigos

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