| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetoresistance effect element which shows a fully stabilized signal detection operation. SOLUTION: In addition to a layered product S1 provided with a synthetic spin-valve structure (SySV) 10 including a ferromagnetic free layer 9, this MR element 1 includes a longitudinal bias layer 12 via a decoupling layer 11 on the layered product S1, and further includes a stitched structure S2, having an area larger than that of the longitudinal bias layer 12 in a parallel cross section so as to join to the longitudinal bias layer 12. This allows a stabilized exchange bias magnetic field to be given to the ferromagnetic free layer 9 by the exchange coupling between a synthetic pinning layer 20 and the longitudinal bias layer 12, and the ferromagnetic free layer 9. Consequently, the formation of a single magnetic domain in the ferromagnetic free layer 9 can be fully promoted, so that the fully stabilized signal detection operation can be performed. COPYRIGHT: (C)2006,JPO&NCIPI |
