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The effect of atomic volume on the Curie temperature and exchange integrals in amorphous R-Fe alloys

Curie temperatures and the dependence of exchange inegrals on the atomic volumes in amorphous R-Fe alloys were obtained by means of magnetization measurements under hydrostatic pressure and calculations based on molecular field theory. The hydrostatic pressure leads to decreasing of the ferromagneti...

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Published in:Journal of magnetism and magnetic materials 1993, Vol.118 (1), p.142-146
Main Authors: Andreenko, A.S., Nikitin, S.A., Spichkin, Yu.I.
Format: Article
Language:English
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description Curie temperatures and the dependence of exchange inegrals on the atomic volumes in amorphous R-Fe alloys were obtained by means of magnetization measurements under hydrostatic pressure and calculations based on molecular field theory. The hydrostatic pressure leads to decreasing of the ferromagnetic exchange interactions inside the iron magnetic subsystem and to increasing of the inferromagnetic exchange interactions between iron and the rare-earth subsystems. The results obtained for the amorphous alloys were compared with the results for the crystalline R-Fe compounds
doi_str_mv 10.1016/0304-8853(93)90168-2
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title The effect of atomic volume on the Curie temperature and exchange integrals in amorphous R-Fe alloys
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