US 11,670,337 B1
Discrete track magnetic recording for EAMR
Steven Douglas Granz, Shakopee, MN (US); and Ian James Gilbert, Chanhassen, MN (US)
Assigned to SEAGATE TECHNOLOGY LLC, Fremont, CA (US)
Filed by Seagate Technology LLC, Fremont, CA (US)
Filed on Dec. 2, 2021, as Appl. No. 17/540,566.
Int. Cl. G11B 20/12 (2006.01); G11B 21/08 (2006.01)
CPC G11B 21/08 (2013.01) 19 Claims
OG exemplary drawing
 
1. A data storage medium comprising:
a substrate;
a plurality of spaced-apart discrete data storage tracks supported by the substrate; and
magnetic flux sinking or plasmonic material between the discrete data storage tracks and over the substrate,
wherein the magnetic flux sinking or plasmonic material is a continuous layer connecting two adjacent discrete data storage tracks in a cross-track direction, and wherein an upper surface of the continuous layer of the magnetic flux sinking or plasmonic material is coplanar with upper surfaces of the two adjacent discrete data storage tracks.