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MA: Fachverband Magnetismus

MA 40: Poster II: Bio- and Molecular Magnetism (1-9); Magnetic Coupling Phenomena/Exchange Bias (10-15); Magnetic Particlicles and Clusters (16-29); Micro and Nanostructured Magnetic Materials (30-51); Multiferroics (52-64); Spin Injection in Heterostructures (65-67); Spin-Dyn./Spin-Torque (68-93); Spindependent Transport (94-108)

MA 40.12: Poster

Friday, March 27, 2009, 11:00–14:00, P1A

Controlled positioning of nanobeads by strayfields of artificial topographically flat magnetic patterns generated by keV-He-ion bombardment — •Daniel Lengemann, Alla Albrecht, Jannick Langfahl-Klabes, Tanja Weis, Dieter Engel, and Arno Ehresmann — Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel

Ion bombardment induced lateral magnetic patterning (IBMP) has been used to generate different magnetic patterns (artificial domains) in an IrMn/NiFe bilayer system without changes in the surface topography. This technique enables to create areas with effective antiparallel magnetizations in adjacent patterns stable in remanence. In the resulting stray fields (essentially emitted by the artificial domain walls) it is possible to position nanobeads along these walls. The dependence of this positioning on the domain wall width, domain wall type and size of the nanobeads will be discussed and first results will be presented.