Thermally-assisted perpendicular magnetic recording system and head

Thermally-assisted perpendicular magnetic recording system and head

  • CN 1,661,678 A
  • Filed: 01/10/2005
  • Published: 08/31/2005
  • Est. Priority Date: 02/27/2004
  • Status: Active Application
First Claim
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1. , a kind of magnetic head that is used at the magnetic track thermal assisted recording of perpendicular magnetic recording layer comprises:

  • Has magnetic head carrier in the face of the surface and the propelling surface of recording layer;

    Advance lip-deep, be used for the magnetic pole that writes that direct magnetic flux is basically perpendicular to recording layer, write magnetic pole and have the magnetic pole tip that is positioned at substantially in the face of the surface of recording layer, the width that writes the magnetic pole tip corresponds essentially to track width;

    Advancing lip-deep and having the ferromagnetic material shielding that is positioned at substantially in the face of the end of the surface of recording layer, this shielding is surrounded substantially and is write the magnetic pole tip, and limits substantially from writing the magnetic flux of magnetic pole tip to track width;

    AndAdvancing resistance heating layer lip-deep, conductive material, it is used for heating recording layer under the condition that exists from the magnetic flux that writes magnetic pole, this zone of heating has substantially in the surface of facing recording layer and than writing the wide edge of magnetic pole tip width, thereby add the zone of the recording layer of ratio of specific heat track width, and HAMR (Heat Assisted Magnetic Recording) only in magnetic track, occurs.

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