Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 20, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3405712
Keywords
cobalt; ferromagnetic materials; magnetic domain walls; magnetisation; multilayers; nanowires; platinum
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Funding
- DFG [SFB 767, KL1811]
- Landesstiftung Baden Wurttemberg
- European Research Council [ERC-2007-Stg 208162]
- EU [MRTN-CT-2006-035327]
- Samsung Advanced Institute of Technology
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We report on low temperature current induced domain wall depinning experiments on (Co/Pt) multilayer nanowires with perpendicular magnetization. Using a special experimental scheme, we are able to extract the different contributions of the Oersted field and spin torque from the dependence of the depinning field on the injected current for selected magnetization configurations. The spin torque contribution is found to be dominant with a small contribution of the Oersted field leading to a nonadiabaticity factor beta in line with previous measurements. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3405712]
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