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Electric field induced phase transition in a ferroelectric smectic-C* liquid crystal

Published online by Cambridge University Press:  21 July 2011

T. Soltani ,
A. Gharbi ,
J.P. Marcerou  and
S. Gineste
T. Soltani*
Affiliation:
Laboratoire de Physique de la Matière Molle Faculté des Sciences de Tunis, 2092 El Manar Tunis, Tunisia
A. Gharbi
Affiliation:
Laboratoire de Physique de la Matière Molle Faculté des Sciences de Tunis, 2092 El Manar Tunis, Tunisia
J.P. Marcerou
Affiliation:
Centre de Recherches Paul Pascal 115, Av. Albert-Schweitzer, 33600 Pessac France
S. Gineste
Affiliation:
Centre de Recherches Paul Pascal 115, Av. Albert-Schweitzer, 33600 Pessac France
*
a e-mail: tawfik_sol@yahoo.fr
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Abstract

We have experimentally investigated the unwinding process of the ferroelectric Sm-C* phase of a chiral AFLC smectic liquid crystal compound 12OF1M7 using the electro-optic properties, microscopic observations and constant current method. We found that this process occurs via two steps through an intermediate phase. Furthermore, we have established the (E-T) phase diagram of the studied compound by combining the experimental results.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 55 , Issue 1: Focus on Hakone XII , July 2011 , 10201
Copyright
© EDP Sciences, 2011

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