Dynamics of Electric Field Induced Deformations in Homeotropic Bent-Core Nematic Layers
M. Buczkowska, J. Graczykowski
Institute of Physics, Lodz University of Technology, Wólczańska 219, 90-924 Łódź, Poland
Received: October 16, 2019; revised version December 3, 2019; in final form December 5, 2019
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Dynamics of deformations induced by dc electric field in homeotropically aligned layers containing a flexoelectric nematic liquid crystal composed of bent-core molecules was studied numerically. The respond times, characterizing the development of deformations after switching on the external voltage, and the decay times, describing the relaxation of deformation after switching off the voltage, were calculated for various values of flexoelectric coefficients. The results were compared with analogous behavior occurring in typical calamitic nematics. It was found that the unique properties of the bent-core nematic do not cause significant difference in the dynamics of deformations.

DOI:10.12693/APhysPolA.137.390
topics: flexoelectricity, bent-core nematic, director deformations, director dynamics