Abstract
The proximity effect of a bulk superconductor (S) and a thin normal ferromagnetic metal layer (F) containing spin-orbit scattering centers is studied. The weak and strong limits of the proximity effect in the SF bilayer are considered analytically in the framework of the microscopic model of the superconducting state of dirty metals. The critical current of an SFIFS tunnel junction (I stands for an insulating layer) whose sides are made of proximity-coupled SF layers is calculated. Effects of spin-orbit scattering in the F layers on tunneling current are studied for parallel and antiparallel magnetization vectors of the F layers. It is shown that there is a complex relation between the magnitude of the superconducting current flowing through the SFIFS junction and scattering: spin-orbit scattering suppresses the exchange field effect in a nonlinear way and, at a fixed concentration of scattering centers, depends on the SF boundary resistance and the strength of the proximity effect.
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