2018年5月2日
Clustered atom-replaced structure in single-crystal-like metal oxide
Superconductor Science and Technology
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- 巻
- 31
- 号
- 6
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/1361-6668/aabb4b
- 出版者・発行元
- Institute of Physics Publishing
By means of metal organic deposition using trifluoroacetates (TFA-MOD), we replaced and localized two or more atoms in a single-crystalline structure having almost perfect orientation. Thus, we created a new functional structure, namely, clustered atom-replaced structure (CARS), having single-crystal-like metal oxide. We replaced metals in the oxide with Sm and Lu and localized them. Energy dispersive x-ray spectroscopy results, where the Sm signal increases with the Lu signal in the single-crystalline structure, confirm evidence of CARS. We also form other CARS with three additional metals, including Pr. The valence number of Pr might change from 3+ to approximately 4+, thereby reducing the Pr-Ba distance. We directly observed the structure by a high-angle annular dark-field image, which provided further evidence of CARS. The key to establishing CARS is an equilibrium chemical reaction and a combination of additional larger and smaller unit cells to matrix cells. We made a new functional metal oxide with CARS and expect to realize CARS in other metal oxide structures in the future by using the above-mentioned process.
- リンク情報
- ID情報
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- DOI : 10.1088/1361-6668/aabb4b
- ISSN : 1361-6668
- ISSN : 0953-2048
- SCOPUS ID : 85047180271
- Web of Science ID : WOS:000431435600002