Method and system for providing magnetic elements having enhanced magnetic anisotropy and memories using such magnetic elements
US8378438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2008 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Mar 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system for providing a magnetic element are described. The magnetic element includes pinned and free layers, a nonmagnetic spacer layer between the free and pinned layers, and a stability structure. The free layer is between the spacer layer and the stability structure. The free layer has a free layer magnetization, at least one free layer easy axis, and at least one hard axis. The stability structure includes magnetic layers and is configured to decrease a first magnetic energy corresponding to the free layer magnetization being aligned with the at least one easy axis without decreasing a second magnetic energy corresponding to the free layer magnetization being aligned with the at least one hard axis. The magnetic element is configured to allow the free layer magnetization to be switched to between states when a write current is passed through the magnetic element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.