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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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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2013, 2, 26—36.

Orientational Transitions in Electric or Magnetic Field in Two-Layer Nematic Structures Induced by Polymer Surface

A. M. Parshin, V. A. Gunyakov, V. Ya. Zyryanov, V. F. Shabanov

Author affiliations
Kirensky Institute of Physics of SB RAS
Akademgorodok 50, Krasnoyarsk, 660036. Russia. 

Two-layer structures of a nematic liquid crystal were experimentally studied in cells with interfacial polycarbonate surfaces under orientational transitions from planar- and homeotropic-domain configurations to the homogeneous homeotropic state. Director reorientation was initiated by electric or magnetic fields. The effective order parameter was used to describe the liquid crystal alignment in two-layer structure. Comparison with a model based on the elasticity theory of liquid crystals was carried out.

Keywords: nematic, polycarbonate, two-layer structure, electric field, magnetic field, domain

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