Energy variation of DOS in spin-valve structure with superconducting electrodes

Abstract Energy variation of the density of states (DOS) has been calculated in S/F/N/F/S structure (S—superconductor, F—ferromagnet, N—thin layer of a normal metal) in the frame of Gorkov equations taking into account the s–d electron scattering in the ferromagnetic layers. DOS behavior is presented for the antiparallel and parallel magnetic moment alignment of two adjacent F layers. The cases of small and large values of exchange ferromagnetic field are discussed.