Patent ID: 7593185

Claim:
A perpendicular magnetic recording head comprising: a main magnetic pole layer comprising a magnetic material; a return yoke layer comprising a magnetic material that faces the main magnetic pole layer with a nonmagnetic gap layer provided therebetween, the gap layer being provided at the surface of the magnetic recording head facing a recording medium and at the trailing side of the main magnetic pole layer; coil layers that provide the main magnetic pole layer and the return yoke layer with a recording magnetic field; and an auxiliary yoke layer provided between the main magnetic pole layer and the return yoke layer, wherein a nonmagnetic spacer layer is provided at least between a rear end of the main magnetic pole layer and a rear end of the return yoke layer, the rear ends being disposed away from the surface of the magnetic recording head facing the recording medium in a height direction; and wherein a rear end of the auxiliary yoke layer is connected to the rear end of the return yoke layer, and the spacer layer is provided between the auxiliary yoke layer and the main magnetic pole layer.