Systems and methods for providing capping layers for heat assisted magnetic recording media
US8947987B1 · kind B1 · utility
4Cited by
269References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jul 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the present invention are directed to heat assisted magnetic recording (HAMR) media with a CoCrPtB based capping layer design that is capable of reducing switching field distribution and boosting signal-to-noise ratio of HAMR media. In one embodiment of the invention, a recording medium for heat assisted magnetic recording (HAMR) includes a substrate, a magnetic recording layer on the substrate, and a capping layer on and directly in contact with the magnetic recording layer. The capping layer includes CoCrPtB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.