Magnetic recording head and magnetic recording apparatus

摘要

The strength of a magnetic field applied from a main pole to an oscillator and the strength of a magnetic field applied from the main pole to a recording medium are improved in a magnetic recording head for microwave assisted recording. In the magnetic recording head according to the present invention, an interval between the main pole and a trailing shield at a place in a position above an air bearing surface is larger than an interval between the main pole and the trailing shield on the air bearing surface.

主权项

1. A magnetic recording head, comprising:
a main pole that generates a magnetic field; a trailing shield provided on a trailing side of the main pole; and an oscillator provided between the main pole and the trailing shield for generating a high frequency field, wherein the magnetic recording head includes a portion in which an interval between the main pole and the trailing shield at a place in a position above an upper end portion of the oscillator and within a height from a bearing surface of the trailing shield as a reference height, the height is in a vicinity of a surface of the trailing shield opposing to the main pole, is larger than an interval between the main pole and the trailing shield on an air bearing surface; wherein the trailing shield has a surface facing the main pole, and a surface inclined and tapered at the place; wherein the surface facing the main pole is perpendicular to the air bearing surface such that the inclined surface intersects the perpendicular surface at the place; and wherein the inclined surface inclined away from the oscillator and connected directly to the surface facing the main pole.