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Temperature dependent asymmetry of the nonlocal spin-injection resistance: evidence for spin non-conserving interface scattering

Samir Garzon·Igor Zutic·Richard A. Webb
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Abstract

We report nonlocal spin injection and detection experiments on mesoscopic Co-Al2O3-Cu spin valves. We have observed a temperature dependent asymmetry in the nonlocal resistance between parallel and antiparallel configurations of the magnetic injector and detector. This strongly supports the existence of a nonequilibrium resistance that depends on the relative orientation of the detector magnetization and the nonequilibrium magnetization in the normal metal providing evidence for increasing interface spin scattering with temperature.

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Samir Garzon, Igor Zutic, Richard A. Webb. 2005-04-26. Temperature dependent asymmetry of the nonlocal spin-injection resistance: evidence for spin non-conserving interface scattering. https://doi.org/10.1103/physrevlett.94.176601

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