Antiferromagnetically coupled spin-torque oscillator with hard perpendicular polarizer
US9595917B2 · kind B2 · utility
12Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Aug 5, 2015 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Aug 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a polarizer, a first free layer, a second free layer, and an antiferromagnetic (AF) coupling layer. The polarizer has a perpendicular magnetic anisotropy (PMA). The polarizer, the first free layer, the second free layer, and the AF coupling layer are included in a spin-torque oscillator (STO). The AF coupling layer is positioned between the first free layer and the second free layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.