Electrohydrodynamic instability in nematic liquid crystals with a large positive dielectric anisotropy

Abstract

The conditions for generating electrohydrodynamic (EHD) instability is experimentally studied using liquid crystals with a large positive dielectric anisotropy. The nature of the dependence of the threshold potential of EHD instability on the viscosity and electrical conductivity of the substances is established. The resulting dependences agree well with the «isotropic» mechanism of EHD instability