LAMINATED BODY OF ANTIFERROMAGNETIC LAYER AND MAGNETIC LAYER, AND MAGNETIC HEAD

摘要

PROBLEM TO BE SOLVED: To apply a high exchange bias magnetic field from a Mn-Ir alloy antiferromagnetic layer to a magnetic layer. ;SOLUTION: The antiferromagnetic layer comprising a Mn-Ir alloy and a magnetic layer essentially comprising Ni-Fe alloy are formed in such a manner that when (111) planes of both the layers are printed parallel top the substrate surface, the X-ray diffraction intensity IM₁ per unit thickness on the (111) plane of the Mn-Ir alloy layer and the X-ray diffraction intensity INF per unit thickness of the (111) plane of the magnetic layer essentially comprising Ni-Fe alloy satisfy the relation of IMI≥INF. Therefore, the exchange bias magnetic field applied on the magnetic layer can be controlled to ≥10kA/m.;COPYRIGHT: (C)1998,JPO