Structure of the liquid-crystal ferrielectric phases as determined by ellipsometry

被引：128

作者：

Johnson, PM ^{[1
]}

Olson, DA

Pankratz, S

Nguyen, T

Goodby, J

Hird, M

Huang, CC

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[2] Univ Bordeaux 1, Ctr Rech Paul Pascal, CNRS, F-33600 Pessac, France

[3] Univ Hull, Sch Chem, Hull HU6 7RX, N Humberside, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.84.4870

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The unit cell structures of two ferrielectric liquid-crystal phases are determined from ellipsometric studies of freestanding films in a nondistorting rotatable electric field. A highly biaxial mode with out-of-plane distortions describes all of the data from two different compounds. Qualitative and quantitative features of the data rule our alternate models. We also present a detailed explanation for apparent inconsistencies between previous resonant x-ray and optical experiments.

引用

页码：4870 / 4873

页数：4

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