The Magnetic Hyperfine Field at Co^<57> in Antiferromagnetic CoO: A Mossbauer Study at Very Low Temperatures
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概要
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The magnetic hyperfine field at Co^<57> in antiferromagnetic CoO was measured by Mossbauer experiments at very low temperatures. The sample was cooled down to 0.08K by a He^3-dilution refrigerator. Then the nuclear polarization of the parent nucleus, Co^<57>, occurred and the emission spectrum became to be asymmetric. From the intensity ratio of the outermost peaks it was derived that the sign of the hyperfine field was plus and the magnitude was 590±40kOe. A considerable amount of Fe^<3+> coexisted and the hyperfine field at Co^<57> nucleus estimated from the Fe^<3+> spectrum was 603±80kOe.
- 社団法人日本物理学会の論文
- 1974-04-15
著者
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Okada Kunihide
Department Of Metal Science And Technology Kyoto University
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Shinjo Teruya
Institute For Chemical Research Kyoto Universiry
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Okada Kunihide
Department Of Physics Kyoto University:(present Address) Department Of Physics Kumamoto University
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