Helix unwinding in ferroelectric liquid crystals induced by tilted electric field

被引：3
|
作者：
Migranov, Nail G. [1 ]
Kudreyko, Aleksey A. [2 ]
机构：
[1] Bashkir State Pedag Univ, Dept Gen & Theoret Phys, Ufa 450000, Russia
[2] Ufa State Petr Technol Univ, Dept Phys, Ufa 450062, Russia
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
ferroelectric liquid crystals; helicoidal structure; thin films; Euler's equation;
D O I：
10.1088/1674-1056/24/7/076101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Helix unwinding in ferroelectric liquid crystals induced by an electric field is theoretically studied on the basis of the continuum theory. By applying a weak electric field tilted to the smectic layers, the contribution of the dielectric interaction energy density to the total free energy density is increased. Approximation methods are used to calculate the free energy for different tilt angles between the electric field and the smectic layers. The obtained results suggest selecting the optimal number of pitches in the film that matches to the minimum of the free energy.
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收藏
页数：4
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