Magnetic recording element
US7931976B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2008 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Apr 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/115
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording element includes a multilayer having a surface and a pair of electrodes. The multilayer has a first magnetic fixed layer whose magnetization is substantially fixed in a first direction substantially perpendicular to the surface. The multilayer also has a second magnetic fixed layer whose magnetization is substantially fixed in a second direction opposite to the first direction substantially perpendicular to the surface. A third magnetic layer is provided between the first and second magnetic layers. The direction of magnetization of the third ferromagnetic layer is variable. A first intermediate layer is provided between the first and the third magnetic layers. A second intermediate layer is provided between the second and the third magnetic layers. The pair of electrodes is capable of supplying an electric current flowing in a direction substantially perpendicular to the surface to the multilayer. The sectional area taken parallel to the surface at a thickness midpoint of the first magnetic layer is larger than that of the second magnetic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.