Cobalt Impurity, Cation Vacancies and the Magnetic Relaxation of Magnetite
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概要
- 論文の詳細を見る
Disaccommodation spectrum of magnetite found by Braginski were investigated experimentally and theoretically. Peak II is caused by the presense of extremely small concentration of cobalt impurity and it disappears for the high purity magnetite. Peak III is caused by the preferential occupation of cation vacancies and the accurate expression of the relaxation time is 1/τ = 8I_0 = 6.0 × 10^<13> exp (-Q/kT), where Q = 0.94eV and I_0 is the jumping frequency of an iron ion into the nearest neighbor cation vacancy. A suggestion is made for the low temperature line width anomaly of Li_<0.5>Fe_<2.5>O_4 that it is due to ppm cobalt impurity.
- 社団法人日本物理学会の論文
- 1967-08-05
著者
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IIDA Shuichi
Department of Physics, Faculty of Science, The University of Tokyo
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Iida Shuichi
Department Of Physics Faculty Of Science The University Of Tokyo
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Iizuka Tetsutaro
Department Of Biochemistry School Of Medicine Keio University:the Institute Of Physical And Chemical
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Iizuka Tetsutaro
Department Of Physics Faculty Of Science The University Of Tokyo
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Iida Shuichi
Department Of Physics Faculity Of Science University Of Tokyo
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