SURFACE AND BULK ORDER PARAMETERS OF A NEMATIC LIQUID-CRYSTAL

被引：61

作者：

MADA, H

KOBAYASHI, S

机构：

[1] Department of Electronic Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei

来源：

APPLIED PHYSICS LETTERS | 1979年 / 35卷 / 01期

关键词：

D O I：

10.1063/1.90926

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The measurements of the anisotropy of the refractive index have been made for heptyl-cyanobiphenyl (7CB) at the surface as well as in the bulk by the interferometric method. Using these data, order parameters S̄ at the surface and S in the bulk were calculated. The results show that S̄ is slightly larger than S in the nematic temperature region. S becomes zero in the isotropic region; nevertheless, the order parameter at the surface, S̄, still has a finite value even at temperatures above the clearing point.

引用

页码：4 / 5

页数：2

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