On the Disappearance of Ferromagnetism in Disordered Fe-Al Alloys
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概要
- 論文の詳細を見る
The magnetic properties of disordered Fe rich Fe -Al are investigated theore-tically by using the coherent potential approximation (CPA) on the basis of the twodifferent models. The self-consistent CPA calculation combined with the Korringa-Kohn-Rostoker method and the local spin density approximation is shown toreproduce the experimental result of the concentration dependence of the bulkmagnetization only for low Al concentration region. The ferromagnetism-to-spin glass second order transition at the critical Al concentration is obtained bythe calculation on the basis of the tight binding model in which Fe atoms withmagnetic moment antiparallel to the bulk magnetization are distinguished fromFe atoms with parallel moments. The calculated spin susceptibility well reproducesthe experimental result.
- 社団法人日本物理学会の論文
- 1981-01-15
著者
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Akai Hisazumi
Department Of Physics Nara Medical University
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Akai Hisazumi
Department Of Physics Graduate School Of Science Osaka University
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Jo Takeo
Department Of Materials Science Faculty Of Science Hiroshima University
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