Ferroelectric switching of chiral discotic lyomesophases

被引：26
作者：
Krüerke, D [1 ]
Rudquist, P
Lagerwall, ST
Sawade, H
Heppke, G
机构：
[1] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
[2] Tech Univ Berlin, D-10623 Berlin, Germany
来源：
FERROELECTRICS | 2000年 / 243卷 / 1-4期
关键词：
liquid crystals; chirality; lyotropic; discotic; columnar; polar switching; selective reflection;
D O I：
10.1080/00150190008008022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By diluting a ferroelectric columnar liquid crystal with dodecane as apolar organic solvent, soft columnar phases as well as the chiral columnar nematic phase (N-C*) were achieved as lyomesomorphic systems. All obtained lyomesophases exhibited polar switching over a wide temperature range, even down to room temperature. We found an unusual concentration dependence for the selective reflection observed in the highly twisted lyotropic columnar nematic phase. Different possible models are proposed which could explain the observed optical and electro-optical properties of the studied lyomesophases.
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收藏
页码：207 / +
页数：18
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