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http://dx.doi.org/10.1080/15980316.2012.652253

Cell thickness dependence of liquid crystal parameters  

Sood, Nitin (Engineering Materials Division, National Physical Laboratory)
Khosla, Samriti (Liquid Crystals Research Lab, Department of Physics, JCDAV College)
Singh, Darshan (Department of Physics, Punjabi University)
Bawa, S.S. (Engineering Materials Division, National Physical Laboratory)
Publication Information
Journal of Information Display / v.13, no.1, 2012 , pp. 31-36 More about this Journal
Abstract
Ferroelectric liquid crystal parameters, spontaneous polarization, and transition temperature were studied as a function of cell thickness. These parameters were found to increase with increasing cell thickness, but an exception was observed for the transition temperature in the case of a thin cell. A simple Landau model is presented to interpret the theoretical and experimental observations. The anomalous behavior is attributed to the electroclinic effect and is explained using the Landau model.
Keywords
electrical properties; spontaneous polarization; ferroelectric liquid crystals;
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