Influences of the surface elastic energy term K13 on the critical fields of liquid crystal cells and experimental measurement of K13

Guan Rong-Hua; Wang Chui-Ru; Yu Hui; Kang Wen-Xiu; Huai Jun-Xia; Yang Guo-Chen

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Influences of the surface elastic energy term K13 on the critical fields of liquid crystal cells and experimental measurement of K13

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摘要

Based on the modified formula of Rapini-Papoular, the equation and boundary condition of the director of weak anchoring nematic liquid crystal (NLC) cell have been obtained in the case of existence of the surface elastic energy term K13. The influences of K13 on the threshold field and the saturation field have been studied in detail with the methods of analytical derivation and numerical calculation. A new method of checking whether K13 exists or not is given in theory. Combining with the previous work, we also propose an experimental plan to measure the value of K13with a wedge-shaped planar-aligned weak anchoring NLC cell. The numerical experiments are carried out to verify the feasibility of our method.

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《中国物理：英文版》 |2005年第2期|386-392|共7页
作者
Guan Rong-Hua; Wang Chui-Ru; Yu Hui; Kang Wen-Xiu; Huai Jun-Xia; Yang Guo-Chen;
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作者单位

Department of Applied Physics, North China Electric Power University, Baoding 071003, China;

College of Computer Science and Technology, North China Electric Power University, Baoding 071003, China;

Institute of Physics, Hebei University of Technology, Tianjin 300130, China;

Department of Applied Physics, North China Electric Power University, Baoding 071003, China;

Institute of Physics, Hebei University of Technology, Tianjin 300130, China;

Institute of Physics, Hebei University of Technology, Tianjin 300130, China;

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原文格式 PDF
正文语种 chi
中图分类物理学;
关键词
threshold field, saturation field, surface elastic term K13, experimental measurement;

机译：阈值场;饱和场;表面弹性项K13;实验测量;

Influences of the surface elastic energy term K13 on the critical fields of liquid crystal cells and experimental measurement of K13

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