Thickness dependence of the anchoring energy of a nematic cell

被引:12
|
作者
Ataalla, R. M. S. [1 ]
Barbero, G. [2 ]
Komitov, L. [1 ]
机构
[1] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden
[2] Politecn Torino, Dept Appl Sci & Technol, I-10129 Turin, Italy
关键词
LIQUID-CRYSTAL; TRANSITION; ADSORPTION;
D O I
10.1063/1.4802677
中图分类号
O59 [应用物理学];
学科分类号
摘要
The cell gap thickness dependence of the anchoring energy strength of a nematic cell is investigated. The relaxation time of the elastic deformation of a nematic liquid crystal layer imposed by an external electric field is analyzed as a function of the thickness of the nematic layer. The measurements have been performed with conventional sandwich cells with cell gap ranging from 1 mu m to 10 mu m. According to our data, the anchoring energy strength is not only a characteristic of the interface substrate-nematic liquid crystal but it also depends strongly on the cell thickness. (C) 2013 AIP Publishing LLC
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页数:4
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