Dresden 2009 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 37: Spin Dependent Transport Phenomena
MA 37.8: Vortrag
Donnerstag, 26. März 2009, 17:00–17:15, HSZ 403
Examination of manipulation of domain walls by pure diffusive spin currents — •Andreas Lörincz1, Dennis Ilgaz1, Lutz Heyne1, Jan Rhensius1,2, Stephen Krzyk1, Mathias Kläui1, Laura J. Heyderman2, and Ulrich Rüdiger1 — 1Universität Konstanz, 78462 Konstanz — 2Paul Scherrer Institut, 5232 Villigen, Schweiz
Non local spin valves (NLSV) have drawn much attention over the last years, due to their physical porperties and behaviour as well as the perspective of application in different ultra-low power dissipation devices. The advantage of the NLSV is the ability to examine purely the effects of spin currents without contributions from charge currents, which entail Joule heating.
By separating the charge current from the spin current we can study the effects of spin current absorption by a ferromagnet with a domain wall. Using transport measurements at variable temperature, we determine the domain wall depinning properties as a function of the spin accumulation. We then compare the effect to Oersted field-induced domain wall depinning [1].
References: [1] D. Ilgaz et al., Appl. Phys. Lett. 93, 132503 (2008)