Doping effect on the physical properties of bi-layered aurivillius-type structure SrBi2Nb2O9 ferroelectric ceramics: SrBi2Nb2O9 (SBN) aurivillius-type ferroelectric ceramics

Author

Reis, C. ; Silva, Abraham Castellanos ; Guo, Renjia ; Bhalla, A.S. ; Guerra, J.D.S.

Author_Institution

Dept. de Fis. e Quim., Univ. Estadual, Ilha Solteira, Brazil

fYear

2014

fDate

12-16 May 2014

Firstpage

1

Lastpage

4

Abstract

The doping effect on the structural, microstructural and dielectric properties of bismuth layer structured SrBi₂Nb₂O₉(SBN) ferroelectric ceramics has been investigated. The samples were obtained from the solid state reaction sintering method. Particularly, the A-site cation substitution of Sr²⁺ by La³⁺ has been considered, taking into account the lanthanum concentration (x) up to 30 at.%. It has been found that the physical properties of the studied Sr_1-3x/2L_axBi₂Nb₂O₉(SLBN) system are strongly affected by the doping content. The characteristics of the phase transition were investigated from the dielectric response, performed in a wide temperature and frequency range.

Keywords

bismuth compounds; crystal microstructure; doping; ferroelectric ceramics; ferroelectric transitions; lanthanum compounds; sintering; strontium compounds; A-site cation substitution; Sr_1-1.5xLa_xBi₂Nb₂O₉; bi-layered Aurivillius-type structure; bismuth layer structured ferroelectric ceramics; dielectric properties; dielectric response; doping effect; ferroelectric ceramics; microstructural properties; phase transition; physical properties; solid state reaction sintering method; structural properties; Bismuth; Ceramics; Dielectrics; Doping; Lanthanum; Permittivity; Temperature; Aurivillius; ceramics; dielectric properties; ferroelectrics;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM), 2014 Joint IEEE International Symposium on the

Conference_Location

State College, PA

Type

conf

DOI

10.1109/ISAF.2014.6922982

Filename

6922982