ORIENTATIONAL ORDER IN SURFACE LAYERS OF MESOGENS AT THE ISOTROPIC PHASE - NEMATIC LIQUID CRYSTAL TRANSITION

被引：0
|
作者：
Vasilchikova, E. N. [1 ]
Barabanova, N. N. [1 ]
Kozeeva, M. I. [1 ]
Bogdanov, D. L. [1 ]
Belyaev, V. V. [1 ]
Dadivanyan, A. K. [1 ]
机构：
[1] Moscow State Reg Univ MSRU, Radio Str 10a, Moscow 105005, Russia
来源：
LIQUID CRYSTALS AND THEIR APPLICATION | 2015年 / 15卷 / 02期
关键词：
liquid crystal; polarization microscopy; oriented layer; birefringence; order parameter;
D O I：
暂无
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The oriented layer of mesogens on the interphase at the isotropic phase - nematic liquid crystal transition has been studied by the polarization microscopy method. The thickness of the oriented layer was found being equal to 50 divided by 1000 mcm and it decreases with the decrease of the surface curvature radius. Analytical expressions for the phase difference arising at passing of plane-polarized light through the mesogen layer oriented towards cylindrical and spherical surfaces were derived. The order parameter in mesogens at the isotropic phase nematic liquid crystal transition was determined.
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收藏
页码：55 / 62
页数：8
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