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Molecular-field theory analysis of RFe 2 intermetallic compounds

1993; Elsevier BV; Volume: 127; Issue: 3 Linguagem: Inglês

10.1016/0304-8853(93)90054-6

1873-4766

Ying Tang, X.P. Zhong, Hongliang Luo,

Magnetic Properties and Applications

On the basis of the two sublattice model the temperature dependence of magnetization for RFe(2) compounds (R = To, Dy, Ho, Er and Tm) is analyzed. The molecular-field coefficients have been derived by fitting the experimental data, and they are transformed into the spin-exchange parameters. The results show that the spin-exchange interactions in RFe(2) are stronger than those in R(2)Fe(17),R(6)Fe(23) and RFe(3) compounds, which makes their Curie temperatures the highest ones in the corresponding R-Fe binary compounds.