Perpendicular magnetic recording media having novel seed layer
US9117477B2 · kind B2 · utility
1Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2013 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Sep 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/7379
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic medium for perpendicular magnetic data recording, having improved magnetic properties through use of a novel seed layer. The magnetic medium includes a substrate having a seed layer, a magnetic under-layer and a magnetic recording layer formed there-over. The seed layer includes an element selected from a first group of Cr, Co, Fe and Ni, and at least one element that is selected from the other elements of the first group or from a second group consisting of W, Mo and Ru. A buffer layer may be included between the substrate and the seed layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.