EFFECT OF FLEXOELECTRIC COUPLING ON HELIX DISTORTIONS IN CHOLESTERIC LIQUID-CRYSTALS

被引：39

作者：

LEE, SD ^{[1
]}

PATEL, JS ^{[1
]}

MEYER, RB ^{[1
]}

机构：

[1] BRANDEIS UNIV,MARTIN FISHER SCH PHYS,WALTHAM,MA 02254

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 03期

关键词：

D O I：

10.1063/1.345679

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The static and dynamic properties of the flexoelectric effect in cholesteric liquid crystals are presented. The application of an external electric field, below the critical strength for helix unwinding, perpendicular to the cholesteric helix, results in a linear electro-optic effect. The experimental results are in good agreement with theoretical predictions made under the assumption of the uniform distortion of the helix due to the flexoelectric coupling with the field. The temperature dependence of the dynamic response to the field is found to be the Arrhenius type. It is suggested that the surface boundary conditions play a role in the properties of the flexoelectric effect.

引用

页码：1293 / 1297

页数：5

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