MAGNETIC-PROPERTIES OF A NOVEL SM3(FE, TI)29NY NITRIDE

A new interstitial nitride of Sm3(Fe0.933Ti0.067)29Ny (y = 5) has been synthesized. Its x-ray pattern can be indexed in Nd3(Fe,Ti)29-type mo noclinic symmetry with the lattice parameters of a = 1.098 nm, b = 0.8 82 nm, c = 0.985 nm, and beta = 97.50-degrees. The Sm3(Fe0.933Ti0.067) 29Ny nitride exhibits ferromagnetic ordering with a Curie temperature Tc = 75 0 K. The saturation magnetization M(s) is 160 A m2/kg at 4.2 K and 140 A m2/kg at 293 K. The anisotropy field is 18.1 T at 4.2 K and 12.8 T at 293 K. The coercivity of mu0iH(c) = 0. 8 3 T at 293 K on th is new nitride has been developed.