Dynamic electric polarization of nematic liquid crystals subjected to a shear flow

Details Dynamic electric polarization of nematic liquid crystals subjected to a shear flow Dynamic electric polarization of nematic liquid crystals subjected to a shear flow

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007phrve..75d0701g&link_type=abstract

Physical Review E, vol. 75, Issue 4, id. 040701

Nonlinear Sciences

Chaotic Dynamics

3

Orientational Order Of Liquid Crystals, Electric And Magnetic Field Effects On Order, Flows Of Liquid Crystals, Molecular And Microscopic Models And Theories Of Liquid Crystal Structure, Chaotic Dynamics

Scientific paper

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∣≈10-9T . Furthermore, the presence of the electric polarization modifies the orientational dynamics as demonstrated in solution phase diagrams.

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