Semiconductive Properties and Cation Distribution of Copper Ferrites Cu_<1-δ>Fe_<2+δ>O_4
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概要
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Resistivity and Seebeck coefficient of copper ferrites Cu_<1-δ>Fe_<2+δ>O_4 (0<δ<0.5) were measured in the temperature range between 20℃ and 900℃. Marked changes were observed at 360℃ where the cations initiate migration. Effects of metallic ratio and heat-treatment on the semiconductive properties were examined at room temperature. The sign reversal of the seebeck coefficient and the abrupt changes in resistivity took place at the tetragonality (c/a)-1=0.050 as well as at the metallic ratio δ=0.28. The observed results have been adequately interpreted in terms of the cation distribution on tetrahedral and octahedral sites. The conduction mechanism is discussed along with the cation destribution.
- 社団法人応用物理学会の論文
- 1978-10-05
著者
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Kobayashi Satoru
Department Of Pediatrics And Neonatology Nagoya City University Graduate School Of Medical Sciences
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Nanba Noriyuki
Department Of Electrical Engineering Faculty Of Engineering Kanto-gakuin University
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Kobayashi Satoru
Department Of Electrical Engineering Faculty Of Engineering Kanto-gakuin University
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Kobayashi Satoru
Department Biology Tokyo Metropolitan Institute Of Gerontology
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