Polarization Reversal Behavior in Transferred Ferroelectric Liquid Cryslal Film and its Boundary Effect

Abstract

A new lechnique for directly moniloring the intluence of boundary condition on molccular dynamics by using a transferred ferroelectric liquid crystal film has been proposed. The in-plane polarization reversal current of the transferred film has been measured using an interdigitated electrode on the substrate as a function of film thickness and temperature. It is found that polarization reversal behavior in a thin film (<200 layers) is influenced by anchoring effect of the substrate. The polarization reversal currenl can be observed even above a Curie lemperature, which is interpreled to be due to the surface clinic effect of the molecules at the air-liquid crystal interface.