Flow aligning homeotropic nematic liquid crystals under low frequency oscillatory shear

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Abstract

A homeotropic nematic liquid crystal layer was exposed to low-frequency oscillatory rectilinear shear (Couette flow). Below the onset of instability the flow induced birefringence was studied detecting the transmitted light intensity between crossed polars using parallel light beam. For sufficiently large shear rates a transition to a stationary roll pattern was observed.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalSolid State Phenomena
Volume56
DOIs
Publication statusPublished - Jan 1 1997

Keywords

  • Couette Flow
  • Liquid Crystals
  • Pattern Formation
  • Roll Instability

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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