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Reduction and oxidation annealing effects on Cu K-edge XAFS for electron-doped cuprate superconductors
https://repo.qst.go.jp/records/49196
https://repo.qst.go.jp/records/49196ee53a641-1862-4580-b554-cda93a3eb012
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-10-04 | |||||
| タイトル | ||||||
| タイトル | Reduction and oxidation annealing effects on Cu K-edge XAFS for electron-doped cuprate superconductors | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
浅野, 駿
× 浅野, 駿× 鈴木, 謙介× 松村, 大樹× 石井, 賢司× 伊奈, 稔哲× Fujita, M.× 石井 賢司 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Reduction and oxidation annealing effects on the electronic states around the copper sites for Pr2-xCexCuO4 and Nd2-xCexCuO4 with x = 0 and x = 0.15 were investigated by Cu K-edge x-ray absorption measurements. Cu K near-edge spectra were changed by the reduction annealing in a manner similar to the case of Ce substitution for both x = 0 and x = 0.15. This means an increase of electron density at the copper sites, indicating the aspect of electron doping in the reduction annealing. This reduction annealing effect on the near-edge spectra are reverted by the additional oxidation annealing. The amount of electron density around the copper sites is varied by the reduction and oxidation annealing, reversibly, corresponding to the reversible variation of the physical property from insulating to superconductivity. | |||||
| 書誌情報 |
Journal of Physics: Conference Series 巻 969, p. 012051, 発行日 2018-04 |
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| 出版者 | ||||||
| 出版者 | IOP Science | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1742-6596/969/1/012051 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://iopscience.iop.org/article/10.1088/1742-6596/969/1/012051 | |||||
| 関連名称 | http://iopscience.iop.org/article/10.1088/1742-6596/969/1/012051 | |||||
