Research & Faculty

Default Header Image

Nematic-isotropic phase coexistence in a Lebwohl-Lasher model binary liquid crystal mixture

TitleNematic-isotropic phase coexistence in a Lebwohl-Lasher model binary liquid crystal mixture
Publication TypeJournal Article
Year of Publication1997
AuthorsPolson, JM, Burnell, EE
JournalChemical Physics Letters
Volume281
Pagination207-211
Date PublishedDec
Type of ArticleArticle
ISBN Number0009-2614
Keywords1ST-ORDER MELTING TRANSITION, ANISOTROPIC SYSTEMS, BEHAVIOR, COMPUTER-SIMULATION, fluctuations, LATTICE, LIPID BILAYERS, MONTE-CARLO, POTTS-MODEL
Abstract

Monte Carlo computer simulations were used to investigate the phase behaviour of a Lebwohl-Lasher binary liquid-crystal mixture. A finite-size scaling analysis confirmed the first-order nature of the transition. The calculated nematic-isotopic phase coexistence region and the orientational order parameters for the two species along the phase boundary for a sample system were found to deviate significantly from those predicted by a mean-field theory. Increasing the difference between the isotropic components of the pair-potential of the two species resulted in a broadening of the coexistence region. (C) 1997 Elsevier Science B.V.

URL<Go to ISI>://000071256600031