Magnetic and magneto-optical properties of amorphous A1-xFe x alloys (A = B, Ge, and Sn)

Abstract

Amorphous alloys of the type A1-xFex, where A represents B, Ge, or Sn, were prepared by two-source coevaporation in the ranges 0.3≤x≤0.9, 0.30≤x≤0.65, and 0.45≤x≤0.64. The magneto-optical properties of these alloys were examined by means of the polar Kerr effect. The magnetic properties of the alloys with B and Ge were also studied. The concentration dependence of the Fe moments in the Fe metalloid alloys is analyzed in terms of a model in which due account is taken of the fact that the variation of the heat of alloying in the various iron metalloid alloys entails a variable degree of intrinsic compositional short-range order.