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Electric method for studying reorientation dynamics of the nematic liquid crystal director

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Abstract

A method has been proposed for studying the reorientation dynamics of the nematic liquid crystal (NLC) director using the results of measurements of the electric response of an LC cell. The simulation of the time dependences of the current in an LC cell with a homogeneous orientation is carried out upon variation of the applied voltage, the initial tilt angle of the director, dielectric anisotropy, and the elasticity coefficient, as well as the dynamic viscosity, density, and ion mobility in the NLC. A comparison of the experimental and computational curves of the electric response for NLC 5CB shows their good agreement. The method makes it possible to monitor the steady-state current, the density, and the ion mobility in NLCs.

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Authors and Affiliations

  1. ITMO University, St. Petersburg, 197101, Russia

    D. P. Shcherbinin, D. A. Vakulin & E. A. Konshina

Authors
  1. D. P. Shcherbinin
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  2. D. A. Vakulin
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  3. E. A. Konshina
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Correspondence to D. P. Shcherbinin.

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Original Russian Text © D.P. Shcherbinin, D.A. Vakulin, E.A. Konshina, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 86, No. 7, pp. 81–86.

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Shcherbinin, D.P., Vakulin, D.A. & Konshina, E.A. Electric method for studying reorientation dynamics of the nematic liquid crystal director. Tech. Phys. 61, 1039–1045 (2016). https://doi.org/10.1134/S1063784216070227

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