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The Dynamic Properites of Confined Antiferroelectric Liquid Crystal Investigated By Photon Correlation Spectroscopy

Published online by Cambridge University Press:  10 February 2011

Yu.P. Panarin ,
C. Rosenblatr  and
F.M. Aliev
Yu.P. Panarin
Affiliation:
Department of Physics and Materials Research Center, PO BOX 23343, University of Puerto Rico, San Juan, PR 00931-3343, USA
C. Rosenblatr
Affiliation:
Department of Physics, Case Western Reserve University, Cleveland, OH 44106, USA
F.M. Aliev
Affiliation:
Department of Physics and Materials Research Center, PO BOX 23343, University of Puerto Rico, San Juan, PR 00931-3343, USA
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Abstract

Dynamic light scattering was used to examine ferrielectric liquid crystalline phases in porous media. Whereas in larger pores (200 Å) ferrielectric phases were observed, they were not found in the smallest pores (200 Å). Additionally, the temperatures of SmC - SmA phase transition were found to be suppressed in the pores relative to bulk, while SmCA - SmCγ phase transition is not affected by the confinement. These observations have been explained by the structural aspects of antiferroelectric liquid crystalline materials in a confined geometry and show the importance of long range electrostatic interaction for existence of ferrielectric phases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 559: Symposium D – Liquid Crystals Materials and Devices , 1999 , 27
Copyright
Copyright © Materials Research Society 1999

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References

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