Magnetic recording medium, magnetic storage apparatus and method of producing magnetic recording medium
US7566507B2 · kind B2 · utility
7Cited by
10References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 7, 2005 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Sep 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium is provided with an hcp Co alloy magnetic layer with the crystallographic c-axes tilted at an angle from a substrate surface and fixed relative to a recording direction. The tilt is induced by epitaxial growth of the hcp Co alloy on an obliquely evaporated nonmagnetic polycrystalline underlayer, so that the magnetic recording medium exhibits thermal stability and improved overwrite with a single pole-type head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.