Device comprising a first and a second ferromagnetic layer separated by a non-magnetic spacer layer
US6252796A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2000 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Apr 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/3254
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sensor or a memory element comprises a fixed or free ferromagnetic layer. To increase the ease of writting the free layer (for memories) or the fixed layer (for sensors) the layer to be written or switched comprises multilayer configuration comprising two ferromagnetic sublayers separated by a non-magnetic spacer layer, the two ferromagnetic sublayers being magnetically coupled in such manner that their magnetization directions are anti-parallel and the device comprises means for directing a in-plane switching or re-setting current through the multilayered configuration, the current direction being transverse to the magnetization directions of the magnetically coupled sub-layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.