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We present a detailed analysis of the dependence of the critical current I_con the magnetic field B of 0, Pi, and 0-Pisuperconductor-insulator-ferromagnet-superconductor Josephson junctions. I_c(B)of the 0 and Pi junction closely follows a Fraunhofer pattern, indicating ahomogeneous critical current density j_c(x). The maximum of I_c(B) is slightlyshifted along the field axis, pointing to a small remanent in-planemagnetization of the F-layer along the field axis. I_c(B) of the 0-Pi junctionexhibits the characteristic central minimum. I_c however has a finite valuehere, due to an asymmetry of j_c in the 0 and Pi part. In addition, this I_c(B)exhibits asymmetric maxima and bumped minima. To explain these features indetail, flux penetration being different in the 0 part and the Pi part needs tobe taken into account. We discuss this asymmetry in relation to the magneticproperties of the F-layer and the fabrication technique used to produce the0-Pi junctions.

Magnetic interference patterns in 0-Pi SIFS Josephson junctions: effects of asymmetry between 0 and Pi regions