Output enhancement of spin-valve giant magnetoresistance in current-perpendicular-to-plane geometry
作者： H. Yuasa , M. Yoshikawa , Y. Kamiguchi , K. Koi , H. Iwasaki
DOI: 10.1063/1.1499744
关键词:
摘要: In this work, we present a suitable material for metal-based spin-valve in current-perpendicular-to-plane (CPP) geometry. The AΔR (A is the element size and ΔR change resistance) was investigated three kinds of free pinned layers material, that is, Co90Fe10, Fe50Co50, Fe50Co50 with half-atomic Cu layers. When are 5 nm, 1.0 mΩ μm2, 1.6 2.9 respectively. Moreover, dual-type spin valve having achieved 5.2 mΩ μm2. According to thickness dependence AΔR, spin-dependent resistance at interfaces between ferromagnetic spacer enhanced mainly by changing from Co90Fe10 bulk enlarged inserting
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