MAGNETIC-PROPERTIES OF Y(CO1-XFEX)(10)SI-2 COMPOUNDS

The magnetic properties of Y(Co1-xFex)(10)Si-2 (x = 0.0, 0.2, 0.4, 0.6 , 0.8, 1.0) compounds have been studied. All compounds crystallize in ThMn12 type structures. The lattice parameters a and c increase with i ncreasing iron content, while the Curie temperature has a maximum at a bout x = 0.6. The easy magnetization direction at room temperature cha nges from basal plane to the c-axis at about x = 0.2. The anisotropy f ield obtained by the SPD technique reaches a maximum at x = 1.0, with values of 2.1 T at room temperature and 2.6 T at 77 K respectively.