Electric field-induced director orientation of smectic-A domains in an isotropic phase

被引：0

作者：

Seike, K ^{[1
]}

Todorokihara, M ^{[1
]}

Yamada, M ^{[1
]}

Naito, H ^{[1
]}

机构：

[1] Univ Osaka Prefecture, Dept Phys & Elect, Sakai, Osaka 5998531, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2001年 / 366卷

关键词：

smectic-A phase; electric field-induced director orientation; homeotropic alignment; defect;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electric field-induced director orientation of smectic-A phase in an isotropic phase has been studied with a polarizing microscope using the binary mixture of octyloxycyanobiphenyl and dodecyl alcohol. Electric field is applied to the samples in which spherical smectic-A domains with and without defects in an isotropic phase are observed. Field-induced orientation of smectic-A director is observed for spherical smectic-A domains with defects but not observed for those without defects below electric field strength of 1.0 V/mum, indicating that the presence of defects facilitates the director orientation. The threshold field for the smectic-A director orientation varies from smectic-A domain to domain, suggesting that the threshold field is dependent on the structure of defects.

引用

页码：2717 / 2722

页数：6