Proximity effect for asymmetrical three-layered FS structures in external magnetic field

摘要

We study asymmetrical three-layers F_1F_2S and F_1SF_2 structures in an external parallel magnetic field. Assuming that all F and S layers are dirty, we solve the boundary value problem for the Usadel function. We calculate the critical temperature of in the F_1F_2S and F_1SF_2 systems as function of the F layers thicknesses and external magnetic field.