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IMPEDANCE MEASUREMENTS ON A AND B SITE MODIFIED BISMUTH LAYERED STRUCTURE FERROELECTRIC CERAMICS.
- Source :
-
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics . 4/30/2007, Vol. 21 Issue 11, p1875-1890. 16p. 3 Charts, 8 Graphs. - Publication Year :
- 2007
-
Abstract
- A and B site modified new bismuth layered structure ferroelectric ceramics of the Aurivillius family were prepared by the solid-state route. Impedance measurements were performed on these samples to understand the relaxation effects in the frequency range of 100 Hz to 1 MHz. From the detailed impedance and modulus spectroscopic analysis, it is found that the aliovalent modified B-site enhances the relaxor-like nature, compared to A-site substitution. These results were corroborated with ac-conductivity transport analysis. In this connection, a defect formula is also proposed. The results are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02179792
- Volume :
- 21
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 25210342
- Full Text :
- https://doi.org/10.1142/S0217979207037041