Patent ID: 9007722
Filing Date: 2015-04-14
Classification: G11B

Abstract:
1. A high frequency magnetic field assisted magnetic recording head comprising: a main magnetic pole that generates a recording field; and a spin torque oscillator disposed in the vicinity of the main magnetic pole, wherein: a magnetic shield or a wire for supplying electric power to the spin torque oscillator is disposed in contact with a surface of the spin torque oscillator on the opposite side from a surface thereof on the main magnetic pole side; a step is formed at a boundary position between the main magnetic pole and a gap material disposed on both sides of the main magnetic pole in a direction perpendicular to a film stacked direction, and/or between the gap material and a side shield contacting the gap material in the perpendicular direction on trailing side surfaces thereof in at least an air bearing surface; and the spin torque oscillator is formed on the step in at least the air bearing surface.