Mossbauer Study of bcc Fe-Al Alloys near the Critical Concentration
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概要
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The Mossbauer spectra of Fe-Al alloys in the concentration range from 35 to 43 at% Al have been obtained at liquid He temperature. The spectra were analyzed to yield the hyperfine field distribution curves, which are characterized by two distinct peaks indicating the existence of two magnetic states of iron atoms, namely a magnetic state and a nonmagnetic state. It has been revealed that the fraction of the magnetic state, which was estimated from the intensities of two peaks, is comparable to the probability of finding an Fe atom having 4 or more than 4 Fe n. n. The average localized moment has been estimated from the intensity ratio. The average localized moment thus obtained is larger than the spontaneous moment. This fact indicates the existence of antiferromagnetically coupled spins. Correlation between the lattice constant and the magnetic moment is discussed.
- 社団法人日本物理学会の論文
- 1976-05-15
著者
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Shiga Masayuki
Department Of Material Science And Engineering Kyoto University
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Nakamura Yoji
Department Of Material Science And Technology Kyoto University
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