Intrinsic Magnetization in Alloys

The intrinsic magnetization of alloys among the iron transition group of metals has been explained using a Heitler-London model for the $3d$ electrons. The magnetic moment associated with each atom is determined by the principle of maximum spin and the sign of the interaction between neighboring pairs from the overlap of the wave functions. It is found that a large number of alloys derive their spontaneous magnetization from an antiparallel arrangement of atomic spins.