| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10653463 | Solid State Communications | 2005 | 4 Pages |
Abstract
Thin film of both A- and B-site co-substituted Sr0.8Bi2.2Ta2O9 (SBT) by Pr3+ and Nb5+, i.e. Sr0.8Pr0.1Bi2.1Ta1.5Nb0.5O9 (SPBTN) was fabricated on Pt/Ti/SiO2/Si substrates by metalorganic decomposition method. The Nb5+ substitution at B-site and Pr3+ substitution at A-site enhanced the remanent polarization and reduced the coercive field of the films, respectively. The remanent polarization (2Pr) value of the SPBTN film was 22 μC/cm2. The coercive field (2Ec) value of the SPBTN film was 102 kV/cm, which was much lower than that of SBTN (165 kV/cm). The effects of substitution on structural and ferroelectric properties of SBT were discussed in detail. As a result, the A- and B-sites co-substitution may be one of the promising ways to improve ferroelectric properties of SBT.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Haifeng Shi, Yinyin Lin, Ting-Ao Tang,