Chemical-State Studies of Oxygen-Released Y-Ba-Cu Oxide
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概要
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Thermal release of oxygen from a high-T_c compound, YBa_2Cu_3O_7, and the subsequent changes of the chemical states were examined by a thermal desorption method and X-ray photoelectron spectroscopy. The former gives a spectrum with two peaks around 480℃ and 700℃. The latter suggests that the 480℃ peak corresponds to oxygens in the one dimensional CuO chains in the unit cell of the lattice, and the 700℃ peak to one of the oxygens above and below the central copper atom. With the release of these oxygens, the copper atoms in the compound change from a pure Cu^<2+> state into a Cu^<1+> dominant state.
- 社団法人応用物理学会の論文
- 1987-10-20
著者
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Baba Yuji
Departments Of Radiology And Maxillofacial Surgery Kumamoto University School Of Medicine
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TAKANO Ichiro
Departments of Toxicology, The Tokyo Metropolitan Research Laboratory of Public Health
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Sasaki Teikichi
Department Of Chemistry Japan Atomic Energy Research Institute
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Takano Ichiro
Department Of Electrical Engineering Kogakuin University
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MASAKI Norio
Department of Physics, Japan Atomic Energy Research Institute
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BABA Yuji
Department of Chemistry, Japan Atomic Energy Research Institute
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TAKANO Ichiro
Department of Electrical Engineering, Kogakuin University
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