Modulated internal electric field, dielectric susceptibility and polarization in ferroelectric superlattices
Document Type
Article
Publication Date
1-1-2013
Abstract
A thermodynamic model for describing interface intermixing in a superlattice combining a ferroelectric and a paraelectric is developed. Formation of intermixed layer at interfaces leads to a periodic modulation of ferroelectric properties in these superlattices. Spatially-varying internal electric field, dielectric susceptibility and polarization of these superlattices are calculated. Effects of modulation period and temperature on the internal electric field, dielectric susceptibility and polarization of these superlattices with inhomogeneous properties are examined. Correlation between these ferroelectric properties is established and discussed. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Keywords
Interfaces, Ferroelectric properties, Superlattice, Phase
Divisions
PHYSICS
Publication Title
Ceramics International
Volume
39
Additional Information
Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA