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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| s41598-019-56244-x.pdf | 4.31 MB | Adobe PDF | 見る/開く |
| タイトル: | Spin polarization in the phase diagram of a Li–Fe–S system |
| 著者: | Takami, Tsuyoshi Takeuchi, Tomonari Fukunaga, Toshiharu |
| 著者名の別形: | 高見, 剛 竹内, 友成 福永, 俊晴 |
| キーワード: | Chemistry Materials for energy and catalysis |
| 発行日: | 27-Dec-2019 |
| 出版者: | Springer Nature |
| 誌名: | Scientific Reports |
| 巻: | 9 |
| 論文番号: | 19947 |
| 抄録: | Divalent and trivalent states of Fe ions are known to be stable in inorganic compounds. We focus a novel LixFeS5 cathode, in which the Li content (x) changes from 2 to 10 by an electrochemical technique. As x increases from 2, a Pauli paramagnetic conductive Li2FeS5 phase changes into a superparamagnetic insulating Li10FeS5 phase. Density functional theory calculations suggest that Fe+ ions in a high-x phase are responsible for ferromagnetic spin polarization. Reaching the monovalent Fe ion is significant for understanding microscopic chemistry behind operation as Li-ion batteries and the original physical properties resulting from the unique local structure. |
| 記述: | 「イオン摂動」による電池材料硫化鉄リチウムの状態変化を解明 --新規相・物性の開拓と革新的高容量蓄電池の開発に向けて--. 京都大学プレスリリース. 2020-01-06. |
| 著作権等: | © The Author(s) 2019. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| URI: | http://hdl.handle.net/2433/245249 |
| DOI(出版社版): | 10.1038/s41598-019-56244-x |
| PubMed ID: | 31882639 |
| 関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2020-01-06-1 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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