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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 18.69: Poster
Dienstag, 26. Februar 2008, 15:15–18:30, Poster E
Exchange interaction between magnetic nanowires on stepped and flat Cu surfaces: ab initio study — •Hossein Hashemi1, Pavel A. Ignatiev2, Wolfram Hergert1, and Valeri S. Stepanyuk2 — 1Institute of Physics, Martin Luther University Halle-Wittenberg, Von-Seckendorff-Platz 1, 06120 Halle — 2Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle
We report on the ab initio study of the indirect exchange interaction between magnetic nanowires on flat and stepped Cu(111) surfaces. Several geometrical arrangements of Fe nanostructures on stepped and flat surfaces are considered. The exchange interaction is found to exhibit an oscillatory behavior and depends on the chain-chain separation. We compare the exchange interaction between magnetic nanowires on stepped and flat Cu surfaces.