Giant magnetoresistance in electrodeposited Co–Ni–Cu/Cu superlattices

Abstract

We have electrodeposited a series of Co–Ni–Cu/Cu superlattices in which the Cu layer thickness was varied between 7 and 35 Å and the Co–Ni–Cu alloy layer thickness held constant. ‘‘Giant magnetoresistance’’ was observed for all films, with the magnitude of the effect decreasing with increasing Cu spacer layer thickness.