Patent Number: 8,743,497

Title: Discrete track media (DTM) design and fabrication for heat assisted magnetic recording (HAMR)

Abstract: An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

Inventors: Gao; Kaizhong (Shoreview, MN), Seigler; Michael Allen (Eden Prairie, MN), Jin; Xuhui (Fremont, CA), Ju; Ganping (Pleasanton, CA), Lu; Bin (San Ramon, CA)

Assignee: Seagate Technology LLC

International Classification: G11B 5/02 (20060101)

Expiration Date: 2022-06-03 0:00:00