Josephson effect in superconducting constrictions with hybrid SF electrodes: peculiar properties determined by the misorientation of magnetizations

Josephson current in SFcFS junctions with arbitrary transparency of the constriction © is investigated. The emphasis is done on the analysis of the supercurrent dependencies on the misorientation angle $\theta$ between the in-plane magnetizations of diffusive ferromagnetic layers (F). It is found that the current-phase relation $I(\varphi )$ may be radically modified with the $\theta$ variation: the harmonic $I_1\sin \varphi$ vanishes for definite value of $\theta$ provided for identical orientation of the magnetizations ($\theta =0$)thejunctionisinthe$"\pi"$ state. The Josephson current may exhibit a nonmonotonic dependence on the misorientation angle both for realization of $"0 “$and$”\pi "$stateat$\theta =0$. We also analyze the effect of exchange field induced enhancement of the critical current which may occur in definite range of $\theta$.