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The spin-orbit scattering effect on critical current throughsuperconductor/ferromagnet (SF) bilayers separated by an insulator (SFIFStunnel junction) have been investigated for the case of absence of thesuperconducting order parameter oscillations (thin F layers). The analysis isbased on a microscopic theory for proximity coupled SF bilayer for differentbilayer parameters (boundary transparency, proximity effect strength, relativeorientation and value of the F layers exchange field). We find that thespin-orbit scattering considerably modifies dc Josephson current in SFIFStunnel junction. In contrast to a simple physical picture, the reduction of theexchange field effects is nonlinear in character getting its maximum in thefield's region where the critical current enhancement or the transition to the\pi-state take place. Hence, for understanding the various experimental resultson tunnel structures with thin F layers, the coupled effects of the exchangeinteraction and spin-orbit scattering must be considered.Comment: 10 pages, 4 Postscript figure

Spin-orbit scattering effect on critical current in SFIFS tunnel structures