Experimental indication of macroscopic polarization parallel to the tilt plane in free-standing films of ferroelectric liquid crystals 8SI* and DOBAMBC |
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| Authors: | P O Andreeva V K Dolganov C Gors R Fouret |
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| Institution: | (1) Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia;(2) Laboratoire de Dynamique et Structures des Matériaux Moleculaire, Université de Lille 1, UFR de Physique, 59655 Villeneuve d’Ascq, France |
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| Abstract: | Optical reflectivity and x-ray studies have been conducted on free-standing films and bulk samples of ferroelectric liquid
crystals near the smectic-A-smectic-C
* transition. A tilt plane rotation with respect to the direction of an applied electric field is found in the ferroelectric
films above the bulk transition temperature. Whereas the macroscopic polarization is perpendicular to the tilt plane at low
temperature, it is parallel to the tilt plane at elevated temperature. The temperature dependence of the average tilt angle
is measured.
Zh. éksp. Teor. Fiz. 116, 1329–1334 (October 1999)
Published in English in the original Russian journal. Reproduced here with stylistic changes by the Translation Editor. |
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