Structural and magnetic properties of nanocrystalline PrCo3−xFex

We have studied nanocrystalline of PrCo3−xFex prepared by high energy milling technique. The as-milled samples were subsequently annealed in the temperature range from 873 to 1273 K for 30 min in order to optimize their extrinsic properties. Their structural and magnetic properties were investigated by means of X-ray diffraction (XRD) coupled with Curie temperature determination and magnetization measurements. These compounds crystallize in the PuNi3-type structure (space group: R3¯m) for x≤1. The composition is in a three phase field Pr(Co,Fe)3, Pr2(Co,Fe)17 and Pr(Co,Fe)2, for 1