Effect of excess Pb on epitaxial growth of Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub> thin films prepared by chemical solution deposition process
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- KIGUCHI Takanori
- Institute for Materials Research, Tohoku University
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- TSUKAMOTO Tomohito
- Department of Materials Science, Graduate School of Engineering, Tohoku University
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- FAN Cangyu
- Department of Materials Science, Graduate School of Engineering, Tohoku University
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- NISHIJIMA Masahiko
- R and D Center for Ultra High Efficiency Nano-crystalline Soft Magnetic Material, Institute for Material Research, Tohoku University
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- KONNO Toyohiko J.
- Institute for Materials Research, Tohoku University
抄録
This study investigated the effect of excess PbO and post-annealing on the crystallinity and the microstructure of Pb(Mg1/3Nb2/3)O3 (PMN) epitaxial thin films. PMN thin films were deposited on SrTiO3 (STO) (001) substrates using a chemical solution deposition (CSD) process with rapid thermal annealing (RTA) of spin-coated metallo-organic decomposition (MOD) solutions. The nominal film composition was Pbx(Mg1/3Nb2/3)O3 (x = 1.0 or 1.1). All films showed the (001)PMN//(001)STO, [001]PMN//[001]STO epitaxial relationship and were single phase perovskite PMN without any pyrochlore phases. The Pb1.1(Mg1/3Nb2/3)O3/SrTiO3 thin film post-annealed at 973 K with facing treatment showed the highest crystallinity of 0.8° in full width at half maximum (FWHM) of the 002PMN rocking curve. Transmission electron microscopy (TEM) revealed PbO nanoparticles on the surface of the PMN thin films. The film composition was almost stoichiometric. On the other hand, the Pb1.1(Mg1/3Nb2/3)O3/SrTiO3 thin film post-annealed at 973 K without facing treatment showed crystallinity of 1.0° and no PbO nanoparticles. The film composition was almost stoichiometric. These results indicate that the excess PbO is not incorporated into the PMN films. Instead, it volatizes from the film surface, which improves the crystallinity and inhibits the PMN decomposition.
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 121 (1416), 638-643, 2013
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
- 1390282680263504768
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- NII論文ID
- 130004480199
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- ISSN
- 13486535
- 18820743
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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
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- 使用不可