Cobalt Impurity, Cation Vacancies and the Magnetic Relaxation of Magnetite
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- Iida Shuichi
- Department of Physics, Faculty of Science, The University of Tokyo
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- Iizuka Tetsutaro
- Department of Physics, Faculty of Science, The University of Tokyo
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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=8I0=6.0×1013exp(−Q⁄kT), where Q=0.94 eV and I0 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 Li0.5Fe2.5O4 that it is due to ppm cobalt impurity.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 23 (2), 185-188, 1967
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679167090304
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- NII論文ID
- 110001973926
- 210000080031
- 130003734135
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1967JPSJ...23..185I
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- COI
- 1:CAS:528:DyaF2sXkslOnsbk%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 8501341
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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