Giant magnetoresistance of dissymmetrical Co/Au multilayers

Abstract Results are presented for the magnetoresistance (MR) of sapphire/Nb 3 /Cu 3 /Au 8 /(Co/Au 8 ) n dissymmetrical multilayers built by alternating a 0.3 nm discontinuous Co layer with a 0.7 nm continuous one. The observed enhanced MR is related to a higher spin scattering asymmetry for the granular Co layers.