Effect of composition on the structural relaxation of amorphous iron-based alloys

The structural relaxation of iron-based amorphous alloys upon changes in their relative electrical resistance and magnetic moments upon a rise in temperature is investigated. The presence of Nb in Fe(Cu, Nb)–Si,B alloys stabilizes amorphous states, lowering the Curie temperature T C am and raising the temperature of the paramagnetic–ferromagnetic magnetic phase transition.