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The influence of the frequency f of applied ac electric field on the time dependence of electric field induced deformations of homeotropic nematic layers is studied numerically. Three kinds of nematic liquid crystals were considered: non-flexoelectric nematic with negative dielectric anisotropy, Δɛ &lt; 0dielectrically compensated nematic (Δɛ = 0) possessing flexoelectric properties determined by the positive sum of flexoelectric coefficients e = e11 + e33 &gt; 0nematic characterised by both Δɛ &lt; 0 and e &gt; 0.

Numerical study of deformations induced by ac electric field in insulating flexoelectric nematic layers