Observation of continuous and step-like thermomagnetization in Nd-Fe-Al amorphous alloys

Zero field cooled and field cooled thermomagnetizations of melt-spun and chill-cast amorphous Nd/sub 60/Fe/sub 30/Al/sub 10/ alloys have been investigated with use of regular and nonregular temperature cyclings. The regular temperature treatments revealed the presence of bifurcation of the two M/sub ZFC/ and M/sub FC/ curves and a cusp-like behavior of the former appearing at temperature T/sub p/ and T/sub b/, respectively. These two temperatures show up to scale well with external magnetic field. The magnetization of samples responds sensitively to any sudden change of the temperature and field variation.