Localization Effects in Multilayers of Metallic Glasses

The localization effects of disordered metals are due to quantum interferences between conduction electron waves scattered by a random potential. The coherence length of the electron waves is fixed by the inelastic scattering processes and amounts to few hundred A in metallic glasses at 4.2 K. An applied magnetic field gives rise to a magnetoresistance due to the reduction of the coherence length in the direction perpendicular to the field.