Structural and magnetic properties of RFe10Cr2 compounds

The structure and magnetic properties of RFe 10 Cr 2 compounds where R = Y, Nd, Gd, Tb, Dy, Ho, Er, Tm are investigated. X-ray analysis reveals that RFe 10 Cr 2 alloys are of the tetragonal ThMn 12 structure. The lattice constants, Curie temperature, saturation magnetization at 77 and 295 K and the anisotropy field at 295 K are determined. The mean-field approximation is applied to obtain the R-Fe coupling constant. The properties of these compounds are compared with those of R 2 Fe 14 B alloys.