Weak antiferromagnetically coupled media with a five element magnetic alloy and a low moment stabilizing layer
US7393601B1 · kind B1 · utility
4Cited by
8References
15Claims
0Family size
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Key dates
| Filing date | Aug 5, 2004 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Jun 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/73919
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium having a substrate, underlayer, a low moment stabilizing layer, an antiferromagnetic coupling layer, a low magnetic layer having a magnetic saturation of equal to or less than 250 emu/cm2, and a high moment magnetic layer having a magnetic saturation of more than 250 emu/cm2, in this order, is disclosed. The magnetic recording medium has a weak coupling strength of Jex ≦0.05.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.