Confinement-induced orientational order in a ferroelectric liquid crystal containing dispersed aerosils

Phys Rev Lett. 2005 Jan 21;94(2):027801. doi: 10.1103/PhysRevLett.94.027801. Epub 2005 Jan 18.

Abstract

The study of the smectic-A to chiral smectic-C(*) phase transition of the liquid crystal S-(+)-[4-(2(')-methyl butyl) phenyl 4(')-n-octylbiphenyl-4-carboxylate] (CE8) containing dispersed hydrophilic aerosils reveals novel properties, important to understanding quenched disorder and confinement in ferroelectric liquid crystals. Smectic layer compression leads to a distribution of transition temperatures inducing smearing of the macroscopic data across the transition. A pronounced confinement-induced pretransitional tilted order is observed.