Surface phase transitions in polydisperse hard rod fluids

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Show simple item record Martínez-Ratón, Yuri 2010-02-25T12:51:51Z 2010-02-25T12:51:51Z 2002-12
dc.identifier.bibliographicCitation arXiv:cond-mat/0212333v1 [cond-mat.soft]
dc.description 20 pages, 25 figures.-- PACS nrs.: 64.70.Md, 64.75.+g, 61.20.Gy.-- ArXiv pre-print.
dc.description.abstract With the simple Zwanzig model in Onsager approximation I study the effect of length polydispersity in the surface phase diagram of hard rods interacting with a hard wall. The properly extended interface Gibbs-Duhem equation for a polydisperse system allows us to predict the behaviour of the surface tension as a function of the bulk density at the the wall-isotropic interface. Two groups of qualitative different bulk and surface phase diagrams are calculated from two families of parametrized length distribution functions p(l). This parameterization controls the law of decay at large l. I also study the segregation due to polydispersity at the isotropic-nematic interface and the capillary nematization phenomena as a function of polydispersity.
dc.description.sponsorship Support from the postdoctoral position at Wuppertal University and from the Dirección General de Investigación, Conserjería de Educación de la Comunidad de Madrid are gratefully acknowledged. This work is part of Project No. BFM2000-0004 of the Dirección General de Enseñanza Superior.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subject.other [PACS] Transitions in liquid crystals
dc.subject.other [PACS] Phase equilibria
dc.subject.other [PACS] Theory and models of liquid structure
dc.title Surface phase transitions in polydisperse hard rod fluids
dc.type article NonPeerReviewed
dc.description.status No publicado
dc.subject.eciencia Matemáticas
dc.rights.accessRights openAccess
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