Field-induced vortices in weakly anisotropic ferroelectrics

Details Field-induced vortices in weakly anisotropic ferroelectrics Field-induced vortices in weakly anisotropic ferroelectrics

2009-09-09

arxiv.org/abs/0909.1757v1

Physics

Condensed Matter

Materials Science

Scientific paper

In the micro- and nanoscale ferroelectric samples, the formation and the growth of domains are the usual stages of the polarization switching mechanism. By assuming the weak polarization anisotropy and by solving the Ginzburg-Landau-Khalatnikov equation we have explored an alternative mechanism which consists in ferroelectric switching induced by vortex formation. We have studied the polarization dynamics inside a ferroelectric circular capacitor where switching leads to formation of a metastable vortex state with a rotational motion of polarization. Our results are consistent with recent first-principa simulations [I. I. Naumov and H. X. Fu, Phys. Rev. Lett. 98, 077603 (2007)] and with experiments in PbZr0.2Ti0.8O3 [A.Gruverman et al, J. Phys. Condens. Matter 20 342201(2008)] and demonstrate that vortex induced polarization switching can be the effective mechanism for circular nano-capacitors.

Affiliated with

Also associated with

No associations

Rating

Field-induced vortices in weakly anisotropic ferroelectrics 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 Field-induced vortices in weakly anisotropic ferroelectrics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field-induced vortices in weakly anisotropic ferroelectrics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-386600