High-quality single crystal growth of Bi-based perovskite ferroelectrics based on defect chemistry
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- NOGUCHI Yuji
- Research Center for Advanced Science and Technology, The University of Tokyo
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- TANABE Ichiro
- Research Center for Advanced Science and Technology, The University of Tokyo
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- SUZUKI Muneyasu
- Research Center for Advanced Science and Technology, The University of Tokyo
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- MIYAYAMA Masaru
- Research Center for Advanced Science and Technology, The University of Tokyo
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We present the O2-blowing method for the growth of high-quality single crystals of Bi-based perovskite ferroelectrics, in which O2 gas is directly introduced inside crucibles during crystal growth. The O2-blowing method is demonstrated to be effective for enhancing polarization and piezoelectric properties as well as reducing leakage current for (Bi,Na)TiO3-BaTiO3 crystals. The superior properties are suggested to originate from the reduced reorientation of non-180° domains. Ab initio calculations suggest that the interaction between spontaneous polarization and defect dipole composed of Bi vacancy and O vacancy is the origin of the reorientation of non-180° domains.
収録刊行物
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 116 (1357), 994-1001, 2008
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390282680260164608
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- NII論文ID
- 110006914866
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- NII書誌ID
- AA12229489
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- ISSN
- 13486535
- 18820743
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- NDL書誌ID
- 9627964
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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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- JaLC
- NDL
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