Regensburg 2010 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 33: Poster II
MA 33.63: Poster
Freitag, 26. März 2010, 11:00–14:00, Poster B1
Field-pulse exited precessional motion — •Stefan Buschhorn1, Jie Li2, Min-Sang Lee2, Björn Redeker2, and Thomas Eimüller2,3 — 1Institut für Experimentalphysik IV, Ruhr-Universität Bochum, 44780 Bochum — 2Junior Research Group Magnetic Microscopy, Ruhr-Universität Bochum, Universitätsstr. 150, D-44780 Bochum, Germany — 3Hochschule Kempten, University of Applied Sciences, Bahnhofstr. 61, D-87435 Kempten, Germany
Recently we presented a high spatial and temporal resolution fs laser system using an all-optical approach to study magnetisation dynamics [1]. This setup has now been extended to enable magnetic field pulse excitation as well. These two methods give similar information, however as we are using one laser system, we may be able to separate the effect of heating from the effect resulting in a change of the instantaneous magnetic field direction. We will present the new part of our setup and our first results measured with a series of FeNi alloy samples, including Py.
[1] J. Li, M. Lee, et. al., Rev. Sci. Instr. 80, 073703 (2009)