Effect of metalloid elements on magnetic properties of Fe-based bulk metallic glasses

In this work, we successfully prepare Fe80(P, C, B)20 bulk metallic glasses (BMGs) with the different content of P, C, B by combining fluxing treatment and J-quenching technique, and the effects of the metalloid elements (P, C, B) on the thermal stability and magnetic properties of the present Fe80(P, C, B)20 BMGs are investigated systematically. It is found that the replacements of P or B by C and P by B enhance the thermal stability of Fe80(P, C, B)20 BMGs. The substitutions of B for C or P and C for P result in the increase of both the saturation magnetization and the Curie temperature of Fe80(P, C, B)20 BMGs.