Magnetic properties of Pr2Fe6.8Co10.2-xMx (M=Si, Ga and V)

Structural and magnetic properties of the Pr2FC6.8Co10.2-xMx. intermetallic compounds with M =Si, Ga and V, and x = 0, 0.5, 1.0, 1.5 and 2.0 have been investigated. Substitution of M for Co leads to a decrease of the saturati on magnetization, Curie temperature, and anisotropy field. It is noteworthy that the V substitution has different influence on the magnetic properties of the Pr2Fe6.8Co10.2 compounds from the Si and Ga substitutions. The spin -reorientation temperature decreases with increasing M for M=Si and Ga. Thi s phenomena disappeared when M=V, and the saturation magnetization of the V substituted compounds decreased much faster than those of the Si and Ga su bstituted compounds.