Study on the surface enhanced ordering effect of liquid crystal films
ORAL
Abstract
Null Transmission Ellipsometer was employed to study the surface enhanced ordering effect in one smectic liquid crystal. In the SmA temperature window of free standing films with thickness around 15 molecular layers, we studied the response of the surface arrangement as a function of temperature and transverse electric field. From the results we obtained the interaction between the two surfaces as a function of temperature and film thickness. The effective range of surface interaction is found to be around 20 molecular layers.
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