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Regensburg 2013 – scientific programme

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DF: Fachverband Dielektrische Festkörper

DF 22: Poster II

DF 22.44: Poster

Friday, March 15, 2013, 10:30–13:30, Poster D

Time-Resolved Magnetic Imaging in an Energy-Filtered, Aberration-Corrected Photoemission Electron Microscope — •Florian Nickel1, Daniel Gottlob1, Ingo Krug1, Alexander M. Kaiser2, Denys Makarov3, Gungun Lin3, Stefan Cramm1, Hatice Doganay1, Oliver G. Schmidt3, and Claus M. Schneider1,41Peter Grünberg Institut 6, Research Center Jülich, 52425 Jülich — 2SPECS Surface Nano Analysis GmbH, 13355 Berlin — 3Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, 01069 Dresden — 4Fakultät für Physik und Center for Nanointegration Duisburg-Essen (CeNIDE), Universität Duisburg-Essen, 47048 Duisburg

Information technology relies on reliable storage and fast switching of material states. These states can be governed either by magnetic or electrical degrees of freedom, which offers a wide variety of design concepts. Common to all storage concepts is that manipulation of the information state takes place on a characteristic time and length scale, which is in the picosecond respective nanometer range. All requirements are combined in the method of time-resolved photoemission microscopy (TR-PEEM). Recently, we installed a state-of-the-art PEEM with energy-filtering system and aberration corrector (FE LEEM-P90 AC by SPECS) at the FZ-Jülich Beamline UE56/1-SGM @ BESSY. In this poster we present the extension of the microscope setup for synchrotron pump-probe measurements. We will present details about the technical performance of the setup as well as first results on magnetization dynamics in ferromagnetic nanoelements.

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