Patent ID: 6992867

Claim:
A spin valve element comprising an antiferromagnetic layer, a pinned magnetic layer formed in contact with the antiferromagnetic layer so that the magnetization direction thereof is pinned by an exchange coupling magnetic field with the antiferromagnetic layer, a nonmagnetic conductive layer in contact with the pinned magnetic layer, and a free magnetic layer in contact with the nonmagnetic conductive layer; wherein the free magnetic layer comprises a nonmagnetic intermediate layer, and first and second free magnetic layers with the nonmagnetic intermediate layer provided therebetween, the second free magnetic layer is formed in contact with the nonmagnetic conductive layer, the first and second free magnetic layers are antiferromagnetically coupled with each other to bring both first and second free layers into a ferrimagnetic state, and the second free magnetic layer comprises a nonmagnetic intermediate insulating film and a pair of ferromagnetic conductive films which are antiferromagnetically coupled with each other to bring both ferromagnetic conductive films into a ferrimagnetic state.