Structural properties of amorphous bulk Fe, Co and Fe-Co binary alloys

Elastic neutron diffraction experiments on amorphous iron, cobalt and their amorphous binary metallic alloys are presented. The measurements allow, for the first time, to describe the atomic distribution in samples obtained in the form of fine (<30 nm) amorphous elemental particles by sonochemical synthesis. In the case of a-Fe, the structural information from the shape of the radial distribution function is consistent with the Random Packing model (RPD) calculations previously made for films of amorphous iron. Finally the atomic magnetic moment of iron and cobalt in the amorphous bulk phase is also evaluated.