Patent ID: 8355222

Claim:
A perpendicular magnetic write head, comprising: a magnetic pole; a pair of first nonmagnetic gap layers provided on both sides in a track-width direction of the magnetic pole; a second nonmagnetic gap layer provided on a trailing side of the magnetic pole; a pair of third nonmagnetic gap layers provided on opposing outer sides of the pair of first nonmagnetic gap layers in the track width direction: a magnetic shield layer so provided as to surround the magnetic pole with the first to third nonmagnetic layers in between; and a magnetic seed layer formed between the second nonmagnetic gap layer and the magnetic shield layer, and between the third nonmagnetic gap layer and the magnetic shield layer, the magnetic seed layer having a saturation magnetic flux density higher than that of the magnetic shield layer, wherein the magnetic seed layer is not formed between the first nonmagnetic gap layer and the magnetic shield layer.