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Title: Pattern formation during mesophase growth in a homologous series
Author: Tóth-Katona, T.
Börzsönyi, T.
Váradi, Z.
Szabon, J.
Buka, Agnes
González Cinca, Ricard
Ramírez Piscina, Laureano
Casademunt i Viader, Jaume
Hernández Machado, Aurora
Keywords: Cristal·lografia
Equacions d'estat
Transformacions de fase (Física estadística)
Interfícies (Ciències físiques)
Ciència dels materials
Equations of state
Phase transformations (Statistical physics)
Interfaces (Physical sciences)
Materials science
Issue Date: 1996
Publisher: The American Physical Society
Abstract: Remarkable differences in the shape of the nematic-smectic-B interface in a quasi-two-dimensional geometry have been experimentally observed in three liquid crystals of very similar molecular structure, i.e., neighboring members of a homologous series. In the thermal equilibrium of the two mesophases a faceted rectanglelike shape was observed with considerably different shape anisotropies for the three homologs. Various morphologies such as dendritic, dendriticlike, and faceted shapes of the rapidly growing smectic-B germ were also observed for the three substances. Experimental results were compared with computer simulations based on the phase field model. The pattern forming behavior of a binary mixture of two homologs was also studied.
Note: Reproducció del document publicat a:
It is part of: Physical Review E, 1996, vol. 54, núm. 2, p. 1574-1583
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ISSN: 1539-3755
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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