Multicanonical Markov chain Monte Carlo simulation of nematic-isotropic phase transition in liquid crystals

A. K. Chakravarthy; K. Venu; V. S. S. Sastry; K. P.N. Murthy

doi:10.1117/12.581100

1 September 2004 Multicanonical Markov chain Monte Carlo simulation of nematic-isotropic phase transition in liquid crystals

A. K. Chakravarthy, K. Venu, V. S. S. Sastry, K. P.N. Murthy

Author Affiliations +

Proceedings Volume 5565, XV Conference on Liquid Crystals; (2004) https://doi.org/10.1117/12.581100
Event: XV Conference on Liquid Crystals, 2003, Zakopane, Poland

Abstract

Temperature driven first order transition from isotropic to nematic phase in liquid crystals with and without random and quenched orientational disorder is investigated employing multicanonical Monte Carlo simulation. A lattice model with periodic boundary conditions is employed with the pair wise interaction of two nearest neighbor liquid crystal molecules given by the Lebwohl-Lasher potential. The transition temperature decreases with increase of disorder; also the transition appears to soften under strong disorder.

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A. K. Chakravarthy, K. Venu, V. S. S. Sastry, and K. P.N. Murthy "Multicanonical Markov chain Monte Carlo simulation of nematic-isotropic phase transition in liquid crystals", Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); https://doi.org/10.1117/12.581100

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