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

• Authors: J. Pszczoła
• Languages of publication: EN

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.

Keywords

EN

76.80.+y; 75.50.Gg; 71.20.Lp

Discipline

• 75.50.Gg: Ferrimagnetics
• 71.20.Lp: Intermetallic compounds
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 96
• Issue: 1
• Pages: 113-122

Dates

published

1999-07

Contributors

author

J. Pszczoła

• Solid State Physics Department, AGH, Al. Mickiewicza 30, 30-059 Kraków, Poland

Identifiers

DOI

10.12693/APhysPolA.96.113