Magnetic device with exchange bias
US8767453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2012 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/1675
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic device includes a magnetic layer having a variable direction of magnetization, and a first antiferromagnetic layer in contact with the magnetic layer, the first antiferromagnetic layer being able to trap the direction of magnetization of the magnetic layer. The magnetic device also includes a layer made of a ferromagnetic material in contact with the first antiferromagnetic layer through its face opposite to the magnetic layer, the directions of magnetization of the magnetic and ferromagnetic layers being substantially perpendicular. A first layer among the magnetic and ferromagnetic layers has a magnetization, the direction of which is oriented in the plane of the first layer whereas the second of the two layers among the magnetic and ferromagnetic layers has a magnetization, the direction of which is oriented outside of the plane of the second layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.