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Physics of the Solid State

, Volume 57, Issue 9, pp 1912–1916 | Cite as

Electric field induced generation and dynamics of defects in drops of nematic cholesterics

  • Yu. I. Timirov
  • O. A. Skaldin
  • E. R. Basyrova
  • Yu. A. Lebedev
Liquid Crystals

Abstract

The electric field induced dynamics and interconversion of defects in nematic cholesteric drops has been studied experimentally. It has been demonstrated that, depending on the applied voltage and the ratio of the drop radius to the equilibrium helix pitch, R/P, orientational structural interconversions of different types can be realized. In particular, when the condition R/P ≤ 1 is satisfied, drops with defects of only one type, namely, the Frank—Price defect, which rotates upon application of an alternating electric voltage, are observed. In the case of R/P ≥ 1, the rotational dynamics of the defect is transformed during its disintegration into two surface defects with the force m = 1.

Keywords

Liquid Crystal Cholesteric Liquid Crystal Liquid Crystal Cell Orientational Structure Liquid Crystal Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • Yu. I. Timirov
    • 1
  • O. A. Skaldin
    • 1
  • E. R. Basyrova
    • 1
  • Yu. A. Lebedev
    • 1
  1. 1.Institute of Molecules and Crystals Physics, Ufa Scientific CenterRussian Academy of ScienceUfaBashkortostan, Russia

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