Cholesteric-nematic phase-change effect in mixtures containing the liquid-crystal PCB

29 November 1973

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 9 (24) , 561-562
https://doi.org/10.1049/el:19730413

Abstract

The anomalously-low critical field, previously reported in phase change devices that used 4-n-pentyl-4-cyanobipheny (PCB), is shown to be a result of the unusual behaviour of the cholesteric additive used. Using different additives removes the anomaly. The results allow a determination of the twist elastic constant of PCB.

Keywords

PHASE TRANSFORMATIONS
ELASTIC CONSTANT MEASUREMENT
LIQUID CRYSTALS
MIXTURES