Patent ID: 6920022

Claim:
A magnetic transducer, comprising: a nonmagnetic layer having a pair of surfaces opposing each other; a soft magnetic layer formed on one surface of the nonmagnetic layer; a ferromagnetic layer formed on the other surface of the nonmagnetic layer; an antiferromagnetic layer formed on the ferromagnetic layer on the side opposite to the nonmagnetic layer; an interlayer formed in a layer which is at least either the soft magnetic layer or the ferromagnetic layer, the interlayer having magnetism and having higher electrical resistance than the electrical resistance of at least a part of the layer in which the interlayer is formed, wherein one of the following conditions is satisfied: 1) the interlayer contains at least one element in a group consisting of manganese (Mn), chromium (Cr), nickel (Ni), copper (Cu), rhodium (Rh), iridium (Ir) and platinum (Pt), 2) the magnetic transducer further comprises an inserted layer formed at least either between the interlayer and the nonmagnetic layer or on the side opposite to the nonmagnetic layer with respect to the interlayer, the inserted layer containing at least one element in a group consisting of manganese, chromium, nickel, copper, rhodium, iridium and platinum, or 3) the magnetic transducer further comprises a thermal stabilization layer formed at least either between the interlayer and the nonmagnetic layer or on the side opposite to the nonmagnetic layer with respect to the interlayer.