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1999 | 96 | 1 | 113-122
Article title

Magnetic Properties of 4f-3d Intermetallics Studied by ^{161}Dy and ^{57}Fe Mössbauer Effect

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Abstracts
EN
Applications of the Mössbauer effect at the ^{161}Dy and ^{57}Fe nuclei to study heavy rare earth - transition metal compounds are presented. Magnetic hyperfine fields at dysprosium and iron nuclei observed in the Dy_{u}(M-M)_{v} intermetallics (u/v=2/17, 6/23, 1/3, and 1/2; M-M = Mn-Fe, Fe-Co, and Co-Ni), magnetic moments and magnetic ordering temperatures are discussed. The magnetic hyperfine field at iron nuclei and the field at dysprosium nuclei treated as functions of a number of 3d electrons form two different systems of the Slater-Pauling curves. The magnetic ordering temperatures treated as functions of the number of 3d electrons also form the u/v system of curves. Considering the magnetic data and the magnetic hyperfine fields it can be concluded that intermetallics can be treated as three-subsystem ferrimagnets. Consequently, a coexistence between the 4f, 5d, and 3d magnetism in the rare earth - transition metal compounds can be qualitatively explained.
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  • Solid State Physics Department, AGH, Al. Mickiewicza 30, 30-059 Kraków, Poland
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bwmeta1.element.bwnjournal-article-appv96z108kz
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