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Crystal structure, electric and magnetic properties in Nax$CoO_{2}$
http://hdl.handle.net/10131/5058
http://hdl.handle.net/10131/5058cb765976-e004-491b-b49a-df7a1372cc8b
名前 / ファイル | ライセンス | アクション |
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Nagasawa-Nakatsugawa.pdf (203.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-12-14 | |||||
タイトル | ||||||
タイトル | Crystal structure, electric and magnetic properties in Nax$CoO_{2}$ | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Nagasawa, K.
× Nagasawa, K.× Nakatsugawa, Hiroshi |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17414 | |||||
姓名 | ナカツガワ, ヒロシ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17415 | |||||
姓名 | 中津川, 博 | |||||
著者所属 | ||||||
Division of Materials Science and Engineering, Graduate School of Engineering, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The electron density distributions of $γ-Na_{x}CoO_{2}$ have been obtained by the maximum entropy method and the Rietveld analysis using powder x-ray diffraction data at room temperature.In the Rietveld refinement, the deviation of (008) and (108) peaks is very large relative to that of other reflections, and the change in x-ray diffraction data at 10K and room temperature. This indicates that electron density distributions in $γ-Na_{x}CoO_{2}$ are slightly modulated with increasing x. In fact, there found to be the obvious overlapping of the charge density between O-O network and Co ions, but no significant overlapping with increasing x. This is the direct observation of decrease of covalency between O 2p and $Co t_{2g}$ in the $CoO_{2}$ layer with increasing the sodium content. | |||||
書誌情報 |
Proceedings of the Symposia of the 8th IUMRS International Conference on Advanced Materials (IUMRS-ICAM) October 8-13 巻 29, p. 2809-2812, 発行日 2004 |
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フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |