Journal
PHYSICA B-CONDENSED MATTER
Volume 406, Issue 6-7, Pages 1317-1322Publisher
ELSEVIER
DOI: 10.1016/j.physb.2011.01.024
Keywords
Nanoparticle; Core-shell; Ferroelectric; Dielectric
Categories
Ask authors/readers for more resources
A quantitative core-shell structure model on the grain size effect of nano-BaTiO3 ceramics has been proposed on the basis of the Ginsburg-Landau-Devonshire thermodynamic theory. In this study, we have considered the existence of surface effects, which leads to the core-shell structure in BaTiO3 nanoparticles consisting of inner tetragonal core, gradient lattice strain layer, and surface cubic layer. The size effects on the spontaneous polarization, Curie temperature, c/a ratio, and electrocaloric and dielectric properties of BaTiO3 ferroelectric nanoparticle are successfully explained. Theoretical and experimental results for BaTiO3 nanoparticle are compared and discussed. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available