Patent ID: 9208802
Filing Date: 2015-12-08
Classification: G11B

Abstract:
1. A magnetic recording head comprising: a magnetic pole configured to apply a recording magnetic field; a write shield opposed to the magnetic pole with a write gap between the magnetic pole and the write shield; and a high-frequency oscillator between the magnetic pole and the write shield in a range of a width of the magnetic pole, the high-frequency oscillator configured to generate a high-frequency magnetic field, wherein the high-frequency oscillator comprises a spin injection layer, an intermediate layer, and an oscillation layer, which are laminated in a laminating direction, and at least the oscillation layer comprises a surface perpendicular to the laminating direction, an inactive region deactivated by implantation of ions in the surface, and oscillation regions divided by the inactive region, the inactive region extends in parallel to an air bearing surface of the recording head, and the oscillation regions of the oscillation layer are aligned in a direction perpendicular to the air bearing surface of the recording head with the inactive region between the oscillation regions.