Electrohydrodynamic Instabilities in Nematic Liquid Crystals in Low-Frequency Fields

Publisher Website
Google Scholar
Abstract
The threshold for domain formation and the characteristics of domains have been measured over an extended frequency range. Comparison with the Helfrich‐Orsay theory shows a good fit of the threshold over a wider than expected variation of cell thicknesses. This is even true near the ``critical'' frequency where the domain size decreases with increasing frequency. In addition, a new domain regime is described at frequencies smaller than the inverse ion transit time.