The Effect of Bi Ions Substituting at the Sr Site in SrBi<sub>2</sub>Ta<sub>2</sub>O<sub>9</sub>
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- Miura Kaoru
- Research Center, Sony Corporation, 134 Goudo–cho, Hodogaya–ku, Yokohama 240, Japan
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- Tanaka Masahiro
- Research Center, Sony Corporation, 4–14–1 Asahi–cho, Atsugi 243, Japan
書誌事項
- タイトル別名
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- The Effect of Bi Ions Substituting at the Sr Site in SrBi2Ta2O9.
- Effect of Bi Ions Substituting at the Sr Site in SrBi2Ta2O9
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説明
The possibility of the substitution of Bi ions at the Sr site in SrBi2Ta2O9 (SBT) was investigated using calculations of the electronic structures. The Sr ions in SBT do not have a covalent bonding with the surrounding O ions, unlike the substituted Bi ions at the Sr site. Due to the covalent interaction, the Bi ions rather than the Sr ions favour displacement, which is consistent with the experimental result that the remanent polarization of Sr-deficient and Bi-excess SBT is larger than that of stoichiometric SBT. The difference in valency between the Sr and Bi ions seems to be accounted for by the compensation due to the change in the Bi ion valency at the Sr site. We conclude that there is a possibility of the substitution of Bi ions at the Sr site in Sr-deficient and Bi-excess SBT.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 37 (5A), 2554-2558, 1998
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681224508288
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- NII論文ID
- 10004518512
- 130004524911
- 210000043094
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- NII書誌ID
- AA10457675
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- COI
- 1:CAS:528:DyaK1cXjslWrsb4%3D
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 4637743
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- 本文言語コード
- en
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- データソース種別
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- NDLサーチ
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