Ferroelectric phases in a chiral bent-core smectic liquid crystal: Dielectric and optical second-harmonic generation measurements

被引：82

作者：

Gorecka, E

Pociecha, D

Araoka, F

Link, DR

Nakata, M

Thisayukta, J

Takanishi, Y

Ishikawa, K

Watanabe, J

Takezoe, H

机构：

[1] Univ Warsaw, Dept Chem, PL-02089 Warsaw, Poland

[2] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

来源：

PHYSICAL REVIEW E | 2000年 / 62卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.62.R4524

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report unambiguous evidence for ferroelectricity in a chiral bent-core liquid crystal. This evidence includes (i) a single current peak in the polarization reversal current, (ii) a strong dielectric response that is suppressed by applying a bias electric field, and (iii) strong optical second-harmonic generation in the absence of electric field even at normal incidence. We propose a phase structure that is anticlinic in tilt and ferroelectric in polar order, i.e., smectic-CAPF*.

引用

页码：R4524 / R4527

页数：4

共 19 条

[1]

BEDAL JP, 1999, MOL CRYST LIQ CRYST, V332, P163

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