From normal ferroelectric transition to relaxor behavior in Aurivillius ferroelectric ceramics

The influence of the barium concentration on the dielectric response of Sr 1− x Ba x Bi 2 Nb 2 O 9 system, with x  = 0, 15, 30, 50, 70, 85, 100 at.%, has been studied. The barium concentration dependence of T m , as well as the temperature of the corresponding maximum for the real part of the dielec...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science 2014-11, Vol.49 (21), p.7437-7444
Main Authors: González-Abreu, Y., Peláiz-Barranco, A., Guerra, J. D. S., Gagou, Y., Saint-Grégoire, P.
Format: Article
Language:English
Subjects:
Analysis
Barium
Ceramic materials
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Condensed Matter
Crystallography and Scattering Methods
Dependence
Ferroelectric materials
Ferroelectricity
Materials Science
Original Paper
Perovskite
Phase transitions
Physics
Polymer Sciences
Relaxors
Solid Mechanics
Structural analysis
Technology application
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The influence of the barium concentration on the dielectric response of Sr 1− x Ba x Bi 2 Nb 2 O 9 system, with x  = 0, 15, 30, 50, 70, 85, 100 at.%, has been studied. The barium concentration dependence of T m , as well as the temperature of the corresponding maximum for the real part of the dielectric permittivity, has suggested a cation site mixing among atomic positions, which has been supported by the structural analysis. A transition from normal ferroelectric–paraelectric phase transition to a relaxor behavior has been observed in the studied samples, when the barium concentration has increased. The relaxor behavior has been discussed.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-014-8448-0