The influence of the flexoelectric effect on the electrohydrodynamic instability in nematics
- 1 January 1989
- journal article
- research article
- Published by Taylor & Francis in Liquid Crystals
- Vol. 4 (3) , 309-316
- https://doi.org/10.1080/02678298908029184
Abstract
A rigorous three-dimensional linear analysis of the electrohydrodynamic instability in nematic liquid crystals including the flexoelectric effect is presented for the case of an applied d.c. voltage. The flexoelectric effect leads to an appreciable reduction of the threshold and to the appearance of oblique rolls at threshold for the standard material MBBA. We discuss the influence of a magnetic field and test several approximations against the rigorous resultsKeywords
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