DYNAMICS OF SURFACE ANCHORING BREAKING IN A NEMATIC LIQUID-CRYSTAL

被引：20

作者：

GHARBI, A ^{[1
]}

FEKIH, FR ^{[1
]}

DURAND, G ^{[1
]}

机构：

[1] LAB PHYS SOLIDE,BATIMENT 510,CTR UNIV,F-91405 ORSAY,FRANCE

来源：

LIQUID CRYSTALS | 1992年 / 12卷 / 03期

关键词：

D O I：

10.1080/02678299208031064

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a simple dynamical model which describes the time dependence of the threshold electric field for breaking the surface anchoring of nematics. This model includes a sur-face friction, resulting from volume hydrodynamic dissipation. Experimental data with AC and DC pulsed fields are explained by this model. For DC, the threshold difference versus the field polarity is well-described by the flexo-electric effects in a uniform field for short times and in a non-uniform field for long times.

引用

页码：515 / 520

页数：6

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