Berlin 2008 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 18: Poster I : Bio Magn. (1-2); Mag.Imgaging (3-9); Magn. Semiconductors (10-16); Half Metals & Oxides (17-20); Coupl.Phenomena (21-27); Magn. Mat. (28-41); Micro & Nanostr. Magn. Materials (42-61); Micro Magn. (62-64); Surface Magnetism (65-70); Transport Phenomena (71-85)
MA 18.74: Poster
Dienstag, 26. Februar 2008, 15:15–18:30, Poster E
Interaction of pure diffusive spin currents with magnetic domain walls — •Dennis Ilgaz1, Lutz Heyne1, Dirk Backes1,2, Stephen Krzyk1, Mathias Kläui1, Laura J. Heyderman2, and Ulrich Rüdiger1 — 1Universität Konstanz, 78462 Konstanz, Deutschland — 2Paul Scherrer Institut, 5232 Villigen, Schweiz
Diffusive pure spin currents received increasing attention in the last years, due to their novel physics and possible applications. In the non-local spin valve geometry diffusive spin currents can be locally seperated from charge currents. These spin currents induce no Joule heating. It has been shown that pure spin currents can interact with a second magnetic system, e.g. switch the magnetization of a small magnetic particle [1].
We employ pure diffusive spin currents to support current and field-induced domain wall motion. We present new results on the combined influence of pure diffusive spin currents and magnetic fields on magnetic domain walls studied via magnetic resistance measurements in a cryostat at variable temperature.
References [1] T. Kimura et al., Phys. Rev. Lett. 96, 037201 (2006).