title: Dynamic electric polarization of nematic liquid crystals subjected to a shear flow.
abstract: The effect of coupling between the dipole moment and the orientation is explored based on a relaxation equation for the second rank alignment tensor characterizing the molecular order in liquid crystals and a corresponding equation for the electric polarization. The orientational dynamics leads to a time dependence of the electric polarization. We propose a possibility to measure these effects via the resulting magnetic fields of the magnitude |B| approximately equal to 10(-9)T . Furthermore, the presence of the electric polarization modifies the orientational dynamics as demonstrated in solution phase diagrams.
authors.affiliation: Institute for Theoretical Physics, Technische Universität Berlin, Hardenbergstrasse 36, D-10623 Berlin, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Grandner
authors.forename: Sebastian
authors.initials: S
authors.lastname: Heidenreich
authors.forename: Patrick
authors.initials: P
authors.lastname: Ilg
authors.forename: Sabine H L
authors.initials: SH
authors.lastname: Klapp
authors.forename: Siegfried
authors.initials: S
authors.lastname: Hess