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Title:	Phase field simulations and experiments of faceted growth in liquid crystals
Author:	González Cinca, Ricardo; Ramírez de la Piscina Millán, Laureano; Casademunt, Jaume; Hernández-Machado, Aurora; Kramer, L.; Tóth Katona, T.; Börzsönyi, T.; Buka, A.
Other authors:	Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
Abstract:	We present numerical simulations directed at the description of smectic-B germs growing into the supercooled nematic phase for two different liquid crystalline substances. The simulations are done by means of a phase-field model appropriate to study strong anisotropy and also faceted interfaces. The most important ingredient is the angle-dependent surface energy, but kinetic effects are also relevant. The simulations reproduce qualitatively a rich variety of morphologies observed in the experiments for different value of undercooling, extending from the faceted equilibrium shape to fully developed dendrites.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Física::Física de l'estat sòlid::Cristalls -Crystallography -Simulation methods -Liquid crystals -Facets -Dendrites -Phase field models -Solidification -Digital simulation -Cristal·lografia -Simulació, Mètodes de
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Document type:	Article - Published version Article
Published by:	Elsevier Science
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