Title

Temperature Dependence of Molecular Tilt Angle and Rotatory Power in a Ferroelectric Liquid Crystal with Polarization Sign Reversal

Publication Title

Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics

Publication Date

1989

Document Type

Article

DOI

10.1080/00268948908042164

Disciplines

Physics

Abstract

The molecular tilt angle of the ferroelectric liquid crystal IS-2424 monotonously increases in the smectic C* phase with decreasing temperature from zero at the smectic A-smectic C* transition to about θ = 15°. It can be described by a critical exponent β = 0.26 ± 0.02. The temperature dependence of the tilt angle is definitely not proportional to the temperature dependence of the spontaneous polarization which shows a sign reversal.

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