Title: Systematic study of pretransitional orientational order at the free surface of nCB liquid crystals (n=5-12) in the isotropic phase
Authors: DeSchrijver, P ×
Glorieux, Christ
VanDael, W
Thoen, Jan #
Issue Date: Nov-1997
Publisher: Taylor & Francis
Series Title: Liquid crystals vol:23 issue:5 pages:709-715
Abstract: A high precision rotating ellipsometer was used to perform a systematic study of the pretransitional orientational order induced by the free surface of n-alkylcyanobiphenyl liquid crystals (it = 5-12) in the isotropic phase. All the compounds of this series show a complete wetting behaviour at the free surface. The temperature dependence of the surface order parameter was determined via calculations based on the Landau-de Gennes theory and the results show an even-odd behaviour. Moreover, we used a neural network recognition algorithm to reconstruct the order parameter profile S(z) near the surface. The results of this model-independent analysis are compared with the model based calculations.
ISSN: 0267-8292
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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