ABSTRACT

This chapter discusses some characteristic features of the structure in amorphous magnetic alloys. In amorphous magnets, the function is a random function depending on the distribution of magnetic atoms. In all aspects of disordered systems, the function has been frequently used. From the experimental point of view, a number of amorphous materials have been made by rapidly quenching from the liquid state. Accordingly, one may understand that the structure of amorphous materials is liquid-like. Most experimental studies of amorphous magnets have been employed to alloys of transition metals with metalloid elements, containing approximately 20 at % of the latter. Many of the physical properties of amorphous solids change upon annealing at temperatures and times that produce no detectable crystallization. This presents some difficulties in attempting to characterize the physical properties of an amorphous magnet. Information on atomic arrangements in amorphous magnets has come from X-ray, electron, and neutron scattering experiments and from density measurements.