Patent ID: 8102624

Claim:
A perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer, the main magnetic pole layer and return yoke layer being laminated with a magnetic gap layer interposed therebetween on a surface opposing a recording medium and magnetically coupled to each other on a deeper side of the medium-opposing surface in a height direction, the perpendicular magnetic recording head performing a recording action by applying a perpendicular recording magnetic field from a magnetic pole part exposed at the medium-opposing surface of the main magnetic pole layer to the recording medium; wherein a pair of side coils constituting respective electrically closed circuits on a surface parallel to the medium-opposing surface is provided with the side coils respectively located on opposite sides in a track width direction of the magnetic pole part of the main magnetic pole layer, the pair of side coils generating a demagnetizing field in such a direction as to cancel a magnetic flux change caused by a leakage magnetic flux generated from the magnetic pole part, wherein the pair of side coils has a front part exposed at the medium-opposing surface.