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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., 2010, 2, 58—66.

First Order Freedericksz Transition in Ferronematics

A. N. Zakhlevnykh, D. V. Makarov

Author affiliations
Perm State University
Bukireva Str., 15, Perm, 614990, Russia

The influence of segregation effects on the magnetic field induced orientational phase transitions in a ferronematic is investigated. The magnetic field orientation orthogonal to layer surface are examined. Distributions of the director, the magnetization and the concentration of magnetic particles are found at various values of magnetic field strength, energy of cohesion of magnetic particles with a nematic, Frank elastic constants and segregation parameter. We found out, that Freedericksz transition in ferronematics could be the phase transition both of the first and the second order.

Keywords: ferronematic, liquid crystal, phase transitions, tricritical point

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