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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., 2019, 19 (1), 79—86.
DOI: 10.18083/LCAppl.2019.1.79

Periodic Distortions of Smectic Liquid Cristal Layers in Magnetic and Electric Fields

D. V. Kondratyev1,2, N. G. Migranov3

Author affiliations
1Academy of Sciences of Republic Bashkortostan,
15 Kirova St., Ufa, 450008, Russia
2Bashkir Cooperative Institute (branch) of the Russian Cooperative University,
26 Lenina St., Ufa, 450000, Russia
3Bashkir State Medical University,
3 Lenina St., Ufa, 450008, Russia

The possibility of appearance of periodic distortions in smectic layers in external intersecting magnetic and electric fields was investigated. A theoretical model of behavior of a smectic liquid crystal (LC) limited by two semi-infinite plates with a weak anchoring energy at boundaries was considered. In this model, the magnetic field directed along sample layers, the electric field directed at angle to x-axis in xOz-plane. A relation for critical values of the magnetic and electric fields, for which the appearance of periodic distortions of smectic layers is possible was obtained.

Keywords: smectic liquid crystal, periodic structures, Euler angles, critical fields

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