Regensburg 2013 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 29: Micro- and Nanostructured Magnetic Materials

MA 29.9: Vortrag

Mittwoch, 13. März 2013, 17:15–17:30, H23

Magnetic stray field landscape design due to tailored magnetic domain wall charges between in-plane magnetic domain configurations — •Dennis Holzinger, Norbert Zingsem, Iris Koch, Alexander Gaul, Christoph Schmidt, 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 magnetic pattering (IBMP)[1] of exchange bias layer systems is for the first time used as an outstanding tool for the deliberate design of arbitrary magnetic stray field landscapes. Thermally stable in-plane micro magnetic domain configurations with long-range translational symmetry are fabricated, differing in their individual domain properties concerning the magnitude and direction of anisotropy parameters, domain size, charge accumulation and domain wall angle within the same material system. Since the angle between the in-plane magnetized domains in adjacent domains can be precisely tailored by IBMP, the amount of magnetic net charges within the domain walls and hence, the strength and spatial distribution of the correlated magnetic stray field can be purposefully designed.

[1] Ehresmann, A., Engel, D., Weis, T., Schindler, A., Junk, D., Schmalhorst, J., Höink, V., Sacher, M. D. and Reiss, G. (2006), Fundamentals for magnetic patterning by ion bombardment of exchange bias layer systems. Phys. Status Solidi B, 243: 29-36. doi: 10.1002/pssb.200562442