Observation of Pyroelectricity in Chiral Smectic-Cand -HLiquid Crystals

Abstract
Pyroelectricity has been observed in the smectic-C and smectic-H phases of lp-decyloxybenzylidene-p-amino-2-methylbutylcinnamate after the material is poled in a dc field. The observed pyroelectric coefficient is consistent with an estimate of its theoretical value.