The effect of the pruning-layer thickness difference, Δt(= tP2 - tP1) in a synthetic ferrimagnetic (SAF) structure (P2/Ru/P1/AF) on the magnetoresistance (MR) behavior and the magnetic properties of a synthetic spin valve was investigated. In the samples with Δt < 0, inverse MR curves were observed because the direction of the pinning layer (P1) was opposite to that of the samples with Δt > 0. In the case of the spin valves (SVs) with Δt ≥ 0, the MR ratio increased with increasing Δt, but the effective exchange coupling strength field (Heex) is decreased because a larger torque was exerted on the larger net magnetization. The magnitude and the position of the sub-peaks observed in SAF SVs were also very sensitively affected by Δt.
|Number of pages||3|
|Journal||Journal of the Korean Physical Society|
|Publication status||Published - 2002 Nov 1|
- Pinning layer thickness
- Synthetic spin valve
ASJC Scopus subject areas
- Physics and Astronomy(all)