Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2007-08-15
Physics
Condensed Matter
Soft Condensed Matter
Scientific paper
10.1103/PhysRevE.76.021704
Molecular orientation fluctuations in ferroelectric smectic liquid crystals produce space charges, due to the divergence of the spontaneous polarization. These space charges interact with mobile ions, so that one must consider the coupled dynamics of the orientation and ionic degrees of freedom. Previous theory and light scattering experiments on thin free-standing films of ferroelectric liquid crystals have not included this coupling, possibly invalidating their quantitative conclusions. We consider the most important case of very slow ionic dynamics, compared to rapid orientational fluctuations, and focus on the use of a short electric field pulse to quench orientational fluctuations. We find that the resulting change in scattered light intensity must include a term due to the quasistatic ionic configuration, which has previously been ignored. In addition to developing the general theory, we present a simple model to demonstrate the role of this added term.
Lee Jong-Bong
Meyer Robert B.
Pelcovits Robert A.
No associations
LandOfFree
Dynamics of the molecular orientation field coupled to ions in two-dimensional ferroelectric liquid crystals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamics of the molecular orientation field coupled to ions in two-dimensional ferroelectric liquid crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of the molecular orientation field coupled to ions in two-dimensional ferroelectric liquid crystals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-380884