학술논문
From normal ferroelectric transition to relaxor behavior in Aurivillius ferroelectric ceramics.
Document Type
Article
Source
Subject
*MATERIALS science
*FERROELECTRIC ceramics
*BARIUM
*RELAXOR ferroelectrics
*FERROELECTRIC transitions
*PERMITTIVITY
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Language
ISSN
0022-2461
Abstract
The influence of the barium concentration on the dielectric response of SrBaBiNbO system, with x = 0, 15, 30, 50, 70, 85, 100 at.%, has been studied. The barium concentration dependence of T, 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. [ABSTRACT FROM AUTHOR]