OBSERVATION OF DIELECTRIC BIAXIALITY IN A FERROELECTRIC LIQUID-CRYSTAL BY THE EXCITATION OF OPTIC MODES

被引：4

作者：

ELSTON, SJ

SAMBLES, JR

机构：

[1] Thin Film and Interface Group, Department of Physics, University of Exeter, Exeter

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1992年 / 220卷

关键词：

FERROELECTRIC LIQUID CRYSTALS; DIELECTRIC BIAXIALITY; AC STABILIZATION;

D O I：

10.1080/10587259208033433

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The method of AC stabilization to enhance the contrast of a ferroelectric liquid crystal (FLC) device is well established, however the actual process taking place is not well understood. Here a careful analysis of propagating optic mode data for an AC stabilized cell leads to the conclusion that the AC stabilization process involves a torque around the smectic cone, very similar to the DC/dipole interaction. This shows that the dielectric tensor of a FLC is BIAXIAL. The degree of this biaxiality is measured by comparison between AC and DC interaction energies.

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页码：99 / 104

页数：6

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