Patent ID: 6587317
Filing Date: 2003-07-01
Classification: B82Y,G11B

Abstract:
A magnetic read head comprising:a spin valve sensor including: a free layer structure that has a magnetic moment; a ferromagnetic pinned layer structure that has a net magnetic moment; a nonmagnetic conductive spacer layer located between the free layer structure and the pinned layer structure; an antiferromagnetic pinning layer exchange coupled to the pinned layer structure for pinning the net magnetic moment of the pinned layer structure; the pinned layer structure being composed of cobalt iron vanadium (CoFeV); the pinned layer structure being an antiparallel (AP) pinned layer structure that includes: ferromagnetic first and second antiparallel (AP) pinned layers with the first AP pinned layer interfacing the pinning layer and the second AP pinned layer interfacing the spacer layer; and an antiparallel (AP) coupling layer located between and interfacing the first and second AP pinned layers.