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Synthesis of Copper Oxide Superconductors under High Oxygen Pressure
http://hdl.handle.net/10076/3991
http://hdl.handle.net/10076/3991a93342fe-ee69-4306-be8b-a7847bdc17a0
名前 / ファイル | ライセンス | アクション |
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AA008163410170010.PDF (1.7 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-07-02 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Synthesis of Copper Oxide Superconductors under High Oxygen Pressure | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | high-Tc superconductor | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | high oxygen pressure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | microdomain | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electrochemical oxidation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LaCuO₃-z | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | YBa₂Cu₃‐ₓFeₓOz | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | YBaSrCu₃O₇₊z | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | La₂₋ₓBiₓCuO₄₊z | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | La₂₋ₓNdₓCuO₄ | |||||
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 | departmental bulletin paper | |||||
著者 |
武田, 保雄
× 武田, 保雄× 今西, 誠之× 山本, 治 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Effects of high oxygen pressure have been studied on the formation, structure and physical properties of Cu-oxides with perovskite-related structure. Wide range of oxygen deficiencies were realized in LaCuO₃‐z by changing the synthetic oxygen pressure. The transition metal doped 123 type superconductors, RBa₂Cu₃‐ₓMₓOz(R:Y, Gd; M:Fe, Co) prepared under high oxygen pressure are good example in which we can see the very clear microdomain formation. The YBCO related superconductor, YBaSrCu₃Oz, showed the structural change on XRD observation from orthorhombic to tetragonal when oxygen was over-doped above z=7.0. The "tetragonal phase" was also due to the microdomain formation and the XRD pattern was only averaged one. La₂₋ₓAₓCuO₄₊z with A=Nd and Bi having various oxygen content was prepared under high oxygen pressure and the electrochemical oxidation. They showed large superconducting volume fractions by oxygen dope. The known microscopic phase separation into nearly stoichionetric La₂CuO₄ and superconducting La₂CuO₄₊z seems to be suppressed by the chemical substitution in the rock salt layers. | |||||
書誌情報 |
Research reports of the Faculty of Engineering, Mie University 巻 17, p. 103-122, 発行日 1992-12-21 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0385-6208 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00816341 | |||||
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 | |||||
その他のタイトル | ||||||
ja | ||||||
高温超伝導体の高酸素圧下での合成 | ||||||
出版者 | ||||||
出版者 | Faculty of Engineering, Mie University | |||||
資源タイプ(三重大) | ||||||
Departmental Bulletin Paper / 紀要論文 |