Mechanism of Helix Unwinding in the Ferroelectric Liquid Crystal Phase of Compounds Which Display an Antiferro - Ferri - Ferroelectric Sequence

Abstract

Rdsumd.Nous avons 4tudiA le comportement des lignes de "ddchiralisation" observdes en microscopie optique polarisante sur des dchantillons en gdomdtrie planaire, d'un cristal liquide antiferro41ectrique sous l'action d'un champ dlectrique continu.structure of the planar helicoidal SmC* sample can exist with xd isclinations on the glass surfaces.The behaviour of such samples under an electric field is also discussed.1.