Superparaelectric phase in the ensemble of non-interacting ferroelectric nanoparticles
Materials Science
2009-11-13 v1
Abstract
For the first time we predict the conditions of superparaelectric phase appearance in the ensemble of non-interacting spherical ferroelectric nanoparticles. The superparaelectricity in nanoparticle was defined by analogy with superparamagnetism, obtained earlier in small nanoparticles made of paramagnetic material. Calculations of correlation radius, energetic barriers of polarization reorientation and polarization response to external electric field, were performed within Landau-Ginzburg phenomenological approach for perovskites Pb(Zr,Ti)O3, BiFeO3 and uniaxial ferroelectrics rochelle salt and triglycine sulfate.
Keywords
Cite
@article{arxiv.0806.2127,
title = {Superparaelectric phase in the ensemble of non-interacting ferroelectric nanoparticles},
author = {M. D. Glinchuk and E. A. Eliseev and A. N. Morozovska},
journal= {arXiv preprint arXiv:0806.2127},
year = {2009}
}
Comments
28 pages, 7 figures, 3 Appendices, to be submitted to Phys. Rev. B