Abstract
This paper reports the film and head performance of specular spin valves with nano-oxide layer (NOL-SPSV). A large MR ratio of 17% was obtained by using an ultrathin CoFe free layer with a high conductance Cu layer, which decreases the sense current field of a free layer and brings good soft magnetic characteristics. Prototype heads with a read track width of 0.47-0.61 μm were fabricated by using NOL-SPSV films with an MR ratio of 14-15%, Hua∼400 Oe, and Hc∼5 Oe. High output signal voltage of 8-11 mV/μm was realized in the NOL-SPSV heads.
Original language | English |
---|---|
Pages (from-to) | 208-212 |
Number of pages | 5 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 235 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2001 Oct 1 |
Event | Proceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan Duration: 2000 Oct 23 → 2000 Oct 26 |
Keywords
- Free layer
- Head performance
- NOL
- Specular spin valve
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics