Temperature and field dependence of the optical activity in the ferroelectric, antiferroelectric and subphases of AS661

Upindranath Singh Corresponding author Physics Department, University of the West Indies, P.O. Box 64, Bridgetown, Barbados

Omari Harris Physics Department, University of the West Indies, P.O. Box 64, Bridgetown, Barbados

Carlos Hunte Physics Department, University of the West Indies, P.O. Box 64, Bridgetown, Barbados

Abstract

The effect of applied a.c. electric fields on the optical activity of an antiferroelectric liquid crystal which forms ferroelectric, antiferroelectric and subphases was investigated. Applied fields greater than ∼10 kV m⁻¹ induced an additional phase in the region between the SmC* and SmC*_A phases. Also, applied fields stabilize the SmC*_F2 phase at the expense of the SmC* phase.

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Temperature and field dependence of the optical activity in the ferroelectric, antiferroelectric and subphases of AS661

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Temperature and field dependence of the optical activity in the ferroelectric, antiferroelectric and subphases of AS661

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