| Autor: |
Tafra, E., Ilgaz, D., Nievendick, J., Heyne, L., Backes, D, Moore, T.A., Nino, M.A., Locatelli, A., Mentes, T.O., Schmidsfeld, A.v., Bieren, A.v., Rhensius, J., Krzyk, S., Heidler, J., Heyderman, L.J., Kläui, M. |
| Jazyk: |
angličtina |
| Rok vydání: |
2010 |
| Předmět: |
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| Popis: |
We study the depinning of domain walls by pure diffusive spin currents in a nonlocal spin valve structure based on two ferromagnetic Permalloy elements with copper as the nonmagnetic spin conduit. The injected spin current is absorbed by the second Permalloy structure with a domain wall, and from the dependence of the wall depinning field on the spin current density we find an efficiency of 6 x 10^-14 Tm^2/A, which is more than an order of magnitude larger than for conventional current induced domain-wall motion. Theoretically we find that this high efficiency arises from the surface torques exerted by the absorbed spin current that lead to efficient depinning. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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