Magnetic detecting device having free layer or pinned layer formed by lamination of magnetic alloy and Cu layer and method of manufacturing magnetic detecting device
US7480122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Apr 19, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic detecting device and a method of manufacturing the magnetic detecting device are provided. Non-magnetic material layer-side magnetic layers of second fixed magnetic layers form a fixed magnetic layer. Each of the non-magnetic material layer-side magnetic layers and a free magnetic layer is formed of a layer, for example, a CoMnGeCu layer. In the CoMnGeCu layer, a bulk scattering coefficient may become larger, as compared with a CoMnGe layer. As a result, it is possible to increase the product between a magnetoresistance variation and a device area. Further, the ferromagnetic coupling magnetic field can be decreased. The Cu is added by a range which is larger than 0 at. % and not more than 17.5 at. % (average composition ratio).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.