Abstract
Current perpendicular to plane giant magnetoresistance (CPP-GMR) of single spin valves with two kinds free layers has been investigated. One is a single ferromagnetic layer (Conventional structure) and the other is a ferromagnetic layer with thin Ru cap layer (Ru cap structure). Both structure had increasing resistance and resistance changes with decreasing element size. The CPP-GMR ratio for a Ru cap structure was enhanced from 0.70 to 4.3% at room temperature. We think the MR enhancement is caused by the spin dependent scattering due to strong reflection of majority spins at the Co90Fe10/Ru interface.
Original language | English |
---|---|
Pages (from-to) | 1150-1153 |
Number of pages | 4 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 290-291 PART 2 |
DOIs | |
Publication status | Published - 2005 Apr |
Keywords
- CPP-GMR
- Ru
- Spin-dependent scattering
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics