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Soft Matter and Biological Physics


Eur. Phys. J. E 6, 3-6 (2001)

The flexoelectric effect in nematic liquid crystals: A statistical- mechanical approach

A.V. Zakharov and R.Y. Dong

Department of Physics and Astronomy, Brandon University, Brandon, Manitoba R7A 6A9, Canada

avz@brandonu.ca
dong@brandonu.ca

(Received 27 April 2001 and Received in final form 27 August 2001)

Abstract
The flexoelectric coefficients e1 and e3 for polar liquid crystals, such as 4-n-pentyl- $4^{\prime }$-cyanobiphenyl, are investigated theoretically by means of an integral equation approach, which takes into account translational, orientational correlations as well as their coupling. e1 and e3 are evaluated from microscopic expressions derived on the basis of a density-functional method.

PACS
61.30.Cz - Molecular and microscopic models and theories of liquid crystal structure.
62.40.+i - Anelasticity, internal friction, stress relaxation, and mechanical resonances.


© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2001