Ferroelectric properties in banana-shaped achiral liquid crystalline molecular systems

被引：106

作者：

Sekine, T ^{[1
]}

Takanishi, Y ^{[1
]}

Niori, T ^{[1
]}

Watanabe, J ^{[1
]}

Takezoe, H ^{[1
]}

机构：

[1] TOKYO INST TECHNOL, DEPT ORGAN & POLYMER MAT, MEGURO KU, TOKYO 152, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1997年 / 36卷 / 9AB期

关键词：

ferroelectric liquid crystal; achiral molecule; spontaneous polarization; dielectric constant; Goldstone mode; banana-shaped molecule;

D O I：

10.1143/JJAP.36.L1201

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the ferroelectric behavior in novel ferroelectric liquid crystals consisting of banana-shaped achiral molecules. Under the application of a triangular-wave electric field, we observed a single peak corresponding to the switching current in the higher-order smectic (SmX2) phase as well as the smectic A(b) (SmA(b)) phase, where ferroelectricity had been already reported. This result proves that the spontaneous polarization is switchable with a single hysteresis loop in SmX2 as well as in SmA(b). We also discussed the dielectric behavior in both the phases.

引用

页码：L1201 / L1203

页数：3

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