The Chemical-transport Reaction of Spinel-type Oxides
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概要
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Single crystals and thin films of spinel-type oxides were prepared by a chemical-transport reaction in a closed system, using HCl gas as the transport agent. This paper will report on the preparation conditions and the reaction process of the chemical-transport reaction. The reaction process of Co<SUB>3</SUB>O<SUB>4</SUB> was found to be different from that of other oxides, since Co<SUB>3</SUB>O<SUB>4</SUB> was dissociated into CoO and O<SUB>2</SUB> in the closed tube. The reaction process was explained by the difference in the dissociated oxygen pressure between the source zone and the crystallization zone in the system. The chemical-transport reaction of NiFe<SUB>2</SUB>O<SUB>4</SUB> was applied to the preparation of thin film. The single-crystal thin films were epitaxially grown on the (110) and (111) surfaces of MgO.
- 公益社団法人 日本化学会の論文
著者
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Nagasawa Koichi
Institute For Chemical Research Kyoto University:(present) Central Research Laboratory Mitsubishi El
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Bando Yoshichika
Institute For Chemical Reaearch Kyoto University
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Takada Toshio
Institute For Chemical Research Kyoto University
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