Spin-transfer torque oscillator
US8063709B2 · kind B2 · utility
7Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/3286
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of operating a spin-transfer torque structure to generate voltage oscillations, said structure comprising a first layer of magnetic material having a fixed magnetization vector, a spacer of non magnetic material and a second layer of magnetic material having a free magnetization vector. The method includes the application of a current (jop) through said structure and a magnetic field (Hext) in the plane of the second layer. It makes use of a region of bistability and hysteretic behaviour to trigger and stop the voltage oscillations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.