Microwave-assisted magnetic recording device and method of formation thereof

摘要

A magnetic head, according to one embodiment, includes a magnetized high-speed rotor placed in the vicinity of a main magnetic pole, wherein the main magnetic pole generates a magnetized rotating magnetic field, wherein information is recorded by generating a high-frequency magnetic field from the magnetized high-speed rotor and switching the magnetic head between a magnetic resonance state and a magnetization state, and wherein the magnetic head has a structure such that leaking is reduced for magnetic fields applied parallel to a magnetized rotating surface of the magnetized high-speed rotor from the main magnetic pole. Additional systems and methods are also presented.

主权项

1. A magnetic head, comprising:
a magnetized high-speed rotor positioned at a media-facing surface; and a main magnetic pole positioned near the magnetized high-speed rotor at the media-facing surface, the main magnetic pole being aligned with the magnetized high-speed rotor along a track direction, wherein a side surface of the main magnetic pole facing the magnetized high-speed rotor is inclined away from the magnetized high-speed rotor in the track direction, wherein information is recorded by generating a high-frequency magnetic field from the magnetized high-speed rotor and switching the magnetic head between a magnetic resonance state and a magnetization state, and wherein the magnetic head reduces leaking for magnetic fields applied parallel to a magnetized rotating surface of the magnetized high-speed rotor from the main magnetic pole.