Heat assisted magnetic recording medium and method for fabricating the same
US7838135B2 · kind B2 · utility
4Cited by
1References
13Claims
0Family size
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Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Oct 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/851
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A novel heat assisted magnetic recording (HAMR) medium and the fabrication method therefor are provided. The exchange coupling effect occurring at the interface of FePt/CoTb double layers is adopted, and thus the resulting magnetic flux would be sufficient enough to be detected and readout under the room temperature. The provided HAMR medium exhibits a relatively high saturation magnetization and perpendicular coercivity, and thus possesses a great potential for the ultra-high density recording application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.