Backflow in flexoelectric nematic layers deformed by electric field

M. Buczkowska, G. Derfel

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Coupling between director reorientation and flow appearing in nematic layers during arising and decay of electric field-induced deformations, known as backflow, was analysed numerically. Nematics possessing flexoelectric properties, in which the converse flexoelectric effect occurred, were considered. The velocity of the nematic liquid, as well as the director orientation angle, was calculated as functions of time and coordinate in the layer after applying a voltage step, as well as by switching off the voltage. Homeotropic and planar layers were taken into account. Several distinct forms of the backflow were found which differ from those observed for the non-flexoelectric nematic. Correlations between the flow patterns and the director distributions were determined.

Original languageEnglish
Pages (from-to)169-175
Number of pages7
JournalLiquid Crystals
Volume41
Issue number2
DOIs
StatePublished - 1 Feb 2014
Externally publishedYes

Keywords

  • backflow
  • director deformations
  • flexoelectricity
  • nematic

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

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