Mössbauer study of magnetic properties formation in disordered Fe-Al alloys

For by mechanical treatment disordered Fe-Al alloys in the concentration range of Al from 0 to 60 at% the average hyperfine field, H , and isomer shift, η , values, the magnetic ordering temperatures T c and the average magnetic moment m per Fe atom were measured in Mössbauer and magnetometric studi...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1992-09, Vol.115 (2), p.271-280
Main Authors: Yelsukov, E.P., Voronina, E.V., Barinov, V.A.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Metals. Metallurgy
Mössbauer effect
other γ-ray spectroscopy
Physics
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Summary:For by mechanical treatment disordered Fe-Al alloys in the concentration range of Al from 0 to 60 at% the average hyperfine field, H , and isomer shift, η , values, the magnetic ordering temperatures T c and the average magnetic moment m per Fe atom were measured in Mössbauer and magnetometric studies. An explanation for the features of the concentration dependence H ( x) is proposed in terms of the local hyperfine field H K dependence obtained experimentally, and the local atomic environments probabilities. Proceeding from the data concerning the behaviour of the average and local hyperfine fields and the local atomic configurations, a model for the local magnetic moments m K on the Fe atom, which describes the form of the average magnetic moment m as a function of Al content, was constructed.
ISSN:0304-8853
DOI:10.1016/0304-8853(92)90069-Z