Journal of Experimental and Theoretical Physics

, Volume 126, Issue 2, pp 255–261 | Cite as

Mechanisms of Rotational Dynamics of Chiral Liquid Crystal Droplets in an Electric Field

  • O. A. Skaldin
  • O. S. Tarasov
  • Yu. I. Timirov
  • E. R. Basyrova
Statistical, Nonlinear, and Soft Matter Physics
  • 12 Downloads

Abstract

The dynamics of the orientational structure of chiral nematic (CN) droplets in an isotropic medium in dc and ac electric fields is investigated by the polarized light microscopy technique. It is shown theoretically that the dynamics of rotational processes in these kinds of systems is determined by electroconvective processes developing due to the flexoelectric polarization associated with the initial configuration of the director field in droplets. It is established experimentally that the linear and quadratic regions of dependence of the rotational velocity of droplets on the electric field strength are explained by the above-mentioned mechanisms. Numerical simulation on the basis of the approach developed gives good agreement with experimental data.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • O. A. Skaldin
    • 1
  • O. S. Tarasov
    • 1
  • Yu. I. Timirov
    • 1
  • E. R. Basyrova
    • 1
  1. 1.Institute of Molecules and Crystals Physics, Ufa Scientific CenterRussian Academy of SciencesUfaRussia

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