High frequency field assisted write device
US7724469B2 · kind B2 · utility
99Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Oct 9, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic writer includes a write element and an oscillation device disposed adjacent to the write element. The first oscillation device includes a first magnetic layer, a second magnetic layer having a magnetization vector including a component perpendicular to a major plane of the first magnetic layer. The first nonmagnetic layer disposed between the first magnetic layer and the second magnetic layer. The first oscillation device generates a high-frequency oscillation field when a current is directed perpendicular to the major plane of the first magnetic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.