Patent ID: 6340533
Filing Date: 2002-01-22
Classification: B32B,B82Y,C22C,G11B,H01F,Y10T

Abstract:
A spin-valve magnetoresistance sensor, comprising:a free magnetic layer; a pinned magnetic layer including first and second ferromagnetic films formed in layers to enclose a nonmagnetic coupling film, the first ferromagnetic film antiferromagnetically coupled to the second ferromagnetic films; a nonmagnetic layer enclosed between the pinned and free magnetic layers; and an antiferromagnetic layer neighboring the pinned magnetic layer, the antiferromagnetic layer formed over a substrate, the first ferromagnetic film neighboring the antiferromagnetic layer and formed of a high resistivity material consisting essentially of CoFeB, CoMnB, CoFeC, amorphous CoZrTa, amorphous CoZrNb, and amorphous CoZrMo.