  With purpose to investigate influence of magnetically non-active metal layers
on the Faraday effect in multilayer Ferromagnetic/Normal metal films,
dependences of the Faraday rotation angles of the light polarization plane on
magnetic field have been studied in multilayer [Co/Cu] nanofilms. It was
revealed that the Faraday rotation varies with thickness of the Cu layers. This
dependence of the Faraday rotation on the Cu layer thickness consists of the
monotonic component, namely a gradual rise of the angle with increase of the Cu
layer thickness, and the non-monotonic one represented by two minima. The
monotonic changes of the Faraday rotation were satisfactory described in frames
of the effective medium method. Two minima are explained with the Co layers
fragmentation due to influence of size electron quantization in the Cu layers
on formation of Co clusters during deposition of the films.
