CPP-type magnetoresistive element including a rear bias structure and lower shields with inclined magnetizations
US8891208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2013 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3912
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An MR element suppressing a false writing into a medium with an MR part has a CPP structure. The MR part includes a nonmagnetic intermediate layer and first and second ferromagnetic layers so as to interpose the nonmagnetic intermediate layer. First and second shield layers respectively have an inclining magnetization structure of which a magnetization is inclined with regard to a track width direction. The first and second ferromagnetic layers are respectively, magnetically coupled with the first and second shield layers. A magnetization direction adjustment layer for adjusting at least a magnetization direction of the first ferromagnetic layer is positioned at a rear end surface side of the first ferromagnetic layer, which is opposite to a front end surface receiving a magnetic field detected in the MR part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.