Dresden 2017 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 62: Magnetic Imaging (Experimental Techniques)
MA 62.2: Vortrag
Freitag, 24. März 2017, 09:45–10:00, HSZ 403
Time-resolved X-ray detected ferromagnetic resonance with spatial resolution using scanning X-ray microscopy — •Taddäus Schaffers1, Andreas Ney1, Verena Ney1, Katharina Ollefs2, Ralf Meckenstock2, Detlef Spoddig2, Hendrik Ohldag3, and Michael Farle1 — 1Division of Solid State Physics, Johannes Kepler University, Altenberger Str. 69, 4040 Linz, AUSTRIA — 2Experimental Physics, University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, GERMANY — 3Stanford Synchrotron Radiation Laboratory, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
Recently we have combined a scanning transmission x-ray microscopy (STXM) setup with a novel microwave synchronization scheme for studying high frequency magnetization dynamics in the GHz regime [1] enabeling spatially resolved ferromagnetic resonance studies on magnetic micro- and nanostructures. Compared to other spatially resolved ferromagnetic resonance (FMR) detection schemes [2] the STXM-FMR setup features element-selectivity as well as a high temporal and spatial resolution down to 18 ps and 35 nm [1]. We will briefly present the STXM-FMR detection [1]. In addition, first results derived for coupled magnetic structures will be discussed. We are able to directly image the magnetic excitations and identify the contributions of the respective constituents to conventional FMR spectra.
References [1] S. Bonetti et al., Rev. Sci. Instrum. 86, 093703 (2015) [2] R. Meckenstock, Rev. Sci. Instrum. 79, 041101(2008)