Spin oscillator device
US9543894B2 · kind B2 · utility
3Cited by
0References
21Claims
0Family size
Inventor
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/3281
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to using spin transfer torque underneath a nanocontact on a magnetic thin film with perpendicular magnetic anisotropy (PMA), provides generation of dissipative magnetic droplet solitons and report on their rich dynamical properties. Micromagnetic simulations identify a wide range of automodulation frequencies including droplet oscillatory motion, droplet “spinning”, and droplet “breather” states. The droplet can be controlled using both current and magnetic fields, and is expected to have applications in spintronics, magnonics, and PMA-based domain-wall devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.