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| Title: | Dielectric properties of A- and B-site-doped BaTiO3(I): La- and Al-doped solid solutions |
| Authors: | BOBADE, SM
GULWADE, DD
KULKARNI, AR
GOPALAN, P |
| Keywords: | barium-titanate ceramics
thin-films
phase-transition
ferroelectricity
permittivity
origin
defect
ba1-xsrxtio3
mechanism
lanthanum |
| Issue Date: | 2005 |
| Publisher: | AMER INST PHYSICS |
| Citation: | JOURNAL OF APPLIED PHYSICS, 97(7), - |
| Abstract: | Extremely small amounts of La and Al doping on the A and B site of BaTiO3, respectively, resulting in a solid solution of the type Ba1-3xLa2xTi1-3xAl4xO3 have been investigated. The compositions have been prepared by the Pechini process. The x-ray diffraction (XRD) reveals the presence of tetragonal (P4/mmm) phase. The XRD data has been analyzed using FULLPROF, a Rietveld refinement package. The compositions have been characterized by dielectric spectroscopy between room temperature and 200 degrees C. The resulting compounds (0 <= x <= 0.008) exhibit a remarkable decrease in the Curie temperature as well as a significant enhancement of the dielectric constant. (C) 2005 |
| URI: | http://dx.doi.org/10.1063/1.1879074
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4312
http://hdl.handle.net/10054/4312 |
| ISSN: | 0021-8979 |
| Appears in Collections: | Article
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