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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng

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Journal



Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2015, 15 (1), 6—11.





Induced Flexoeffect in Materials with Anisotropic Atomic Groups



S. A. Pikin

Author affiliations
Shubnikov Institute of Crystallography of RAS,
59 Leninsky prospect, Moscow, 119333, Russia
E-mail: pikin@ns.crys.ras.ru

Abstract
The possibility of flexoelectric effect in the applied electric field is discussed when there are rhombohedral distortions of octahedrons in materials with anisotropic atomic groups which consist of various atoms allowing long axes of forming octahedrons to do harp turnings in space. Such a flexoeffect is characterized by formation of periodic structure, it has threshold character and depends on mechanical compliance of octahedrons and results in certain increase in the homogeneous electrical polarization of a material.

Keywords: liquid crystals, flexoelectric effect, anisotropic molecular groups, electric threshold, periodic structure





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