Perpendicular magnetic recording medium having a multi-layer interlayer that includes BCC material
US7662492B2 · kind B2 · utility
3Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/737
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Perpendicular magnetic recording media and methods of fabricating perpendicular magnetic recording media are described. The perpendicular magnetic recording medium of one embodiment includes a soft magnetic underlayer (SUL), an interlayer, and a perpendicular magnetic recording layer. The interlayer comprises a layer formed from a first material (e.g., NiWCr) having a face-centered-cubic (FCC) structure, a layer formed from a second material (e.g., Cr) having a body-centered-cubic (BCC) structure, and a layer formed from a third material (e.g., Ru) having a hexagonal-close-packed (HCP) structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.