Metallic thin-film magnetic recording media
US5789090A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Aug 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A metallic thin-film magnetic recording medium which is enhanced in coercive force, diminished in nonlinear waveform interference through controlled magnetic anisotropy and adapted to a higher recording density. A seed layer of a crystalline Cr--Ni alloy is formed between the substrate of the medium and a Cr ground layer, whereby the crystal orientation of a magnetic layer is substantially (100) orientation. The crystalline alloy includes an alloy consisting essentially of 36 to 46 atomic % of Ni and the balance substantially Cr, or an alloy consisting essentially of 36 to 46 atomic % of Ni, 0.5 to 3 atomic % of W or Mo or combination thereof and the balance substantially Cr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.