  We report magnetic and superconducting properties of the modified spin valve
system CoOx/Fe1/Cu/Fe2/Cu/Pb. Introduction of a Cu interlayer between Fe2 and
Pb layers prevents material interdiffusion process, increases the Fe2/Pb
interface transparency, stabilizes and enhances properties of the system. This
allowed us to perform a comprehensive study of such heterostructures and to
present theoretical description of the superconducting spin valve effect and of
the manifestation of the long-range triplet component of the superconducting
condensate.
