Influence of Au capping Layer on spin accumulation in a lateral spin-valve structure

We investigate the influence of Au capping layer on the spin accumulation in a lateral spin valve consisting of Permalloy and Cu wires. The nonlocal spin valve measurements show that the Au capping significantly suppresses the spin accumulation in the Cu wire, although it improves the electrical con...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 41; no. 10; pp. 2600 - 2602
Main Authors Kimura, T., Hamrle, J., Otani, Y.
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.10.2005
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Conductivity
Cross-disciplinary physics: materials science; rheology
Electrical resistance measurement
Exact sciences and technology
Gold
Lateral spin valve
Magnetic field measurement
Magnetism
Magnetoelectronics
Materials science
nonlocal measurement
Other topics in materials science
Oxidation
Physics
spin injection
Spin polarized transport
Spin valves
Temperature
Wires
Valves
Lateral spin valve
nonlocal measurement
spin injection
Magnetic properties
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Summary:We investigate the influence of Au capping layer on the spin accumulation in a lateral spin valve consisting of Permalloy and Cu wires. The nonlocal spin valve measurements show that the Au capping significantly suppresses the spin accumulation in the Cu wire, although it improves the electrical conductivity. This is understood as a result of the small spin-flip resistance of Au whereby absorbed spins are successively flipped.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2005.854799