SIMPLE METHOD FOR CONFIRMING THE ANTIFERROELECTRIC STRUCTURE OF SMECTIC LIQUID-CRYSTALS

被引：104

作者：

TAKANISHI, Y ^{[1
]}

TAKEZOE, H ^{[1
]}

FUKUDA, A ^{[1
]}

KOMURA, H ^{[1
]}

WATANABE, J ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT POLYMER CHEM,MEGURO KU,TOKYO 152,JAPAN

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1992年 / 2卷 / 01期

关键词：

LIQUID CRYSTAL; ANTIFERROELECTRICITY; SCHLIEREN TEXTURE; SCREW DISLOCATION; DISPIRATION;

D O I：

10.1039/jm9920200071

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Schlieren texture has been observed in S(C) and S(C)A liquid-crystalline phases. We found that defects of strength s = +/- 1/2 exist in the S(C)A phase in addition to those of s = +/- 1 observed in the S(C) phase. The existence of the s = +/- 1/2 wedge disclination is explained by taking account of a screw dislocation. This complex defect consisting of a wedge disclination and a screw dislocation, i.e. a dispiration, serves as a simple test to confirm the antiferroelectric (S(C)A) structure.

引用

页码：71 / 73

页数：3

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