Field Effect in a Mixture of Cholesteryl Chloride and Cholesteryl Crotonate (75: 25% by weight)

The cholesteric-nematic phase transition in cholesteryl chloride and cholesteryl crotonate (75:25% by weight) is investigated. The dependence of the critical field on temperature is determined either by microscopical examination under polarized light or by following a DLI technique under electric field. Agreement between these methods has been obtained.