Surface order transition in nematic liquid crystals induced by the flexoelectric polarization
作者:
G. Barbero,
G. Durand,
期刊:
Journal of Applied Physics
(AIP Available online 1990)
卷期:
Volume 68,
issue 11
页码: 5549-5554
ISSN:0021-8979
年代: 1990
DOI:10.1063/1.347015
出版商: AIP
数据来源: AIP
摘要:
The influence of the flexoelectric polarization on the nematic surface energy is analyzed. It is shown that if the dielectric constant of the substrate is lower than a critical value the undistorted orientation is no more the one corresponding to lowest energy. The presence of a conducting substrate is also considered. In this case it is shown that by changing the thickness of the dielectric material deposited over the conducting material, a surface order transition is expected. Furthermore, the influence of a finite anchoring energy between nematic and substrate on the critical value of the dielectric constant is discussed.
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