Patent ID: 6392849
Filing Date: 2002-05-21
Classification: B82Y,G11B

Abstract:
A magnetic head comprising:a first spin valve element; a second spin valve element; and a non-magnetic spacer layer formed between the first spin valve element and the second spin valve element; the first spin valve element including: a first pinning layering, including, a first antiferromagnetic film; a first ferromagnetic film; a first non-magnetic film; a second ferromagnetic film; a second non-magnetic film; and a first soft magnetic film forming a first free layer; the second spin valve element including: a second pinning layer including, a second antiferromagnetic film; a third ferromagnetic film; a third non-magnetic film; and a second soft magnetic film forming a second free layer; wherein: the magnetization direction of the first ferromagnetic film and the magnetization direction of the second ferromagnetic film are in an antiparallel state; the magnetization direction of the second ferromagnetic film and the magnetization direction of the third ferromagnetic film are in an antiparallel state; and the first soft magnetic film and the second soft magnetic film are arranged to be symmetrical with respect to the non-magnetic spacer layer.