Dresden 2017 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 6: Magnetic Instrumentation and Characterization
MA 6.6: Vortrag
Montag, 20. März 2017, 10:45–11:00, HSZ 403
XAS and XMCD of size-selected lanthanoid clusters and complexes in the gas phase — •Martin Timm1, Christine Bülow1, Rebecka Lindblad1,2, Vicente Zamudio-Bayer1,3, Bernd von Issendorff3, and Tobias Lau1 — 1Institut für Methoden und Instrumentierung der Forschung mit Synchrotronstrahlung, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany — 2Synkrotronljusfysik, Lunds Universitet, Box 118, 22100 Lund, Sweden — 3Fakultät für Physik, Universität Freiburg, Stefan-Meier-Straße 21, 79104 Freiburg, Germany
Lanthanoid-based materials are currently of great interest in molecular magnetism because of their unquenched 4f orbital magnetic moments. Our cryogenic ion-trap end station at BESSY II allows us to perform x-ray absorption and x-ray magnetic circular dichroism spectroscopy of cold, size-selected, free cluster and organometallic complex ions in the presence of a magnetic field, and to investigate the effect of complexation by ligands on their magnetic properties. We will outline this unique approach to magnetic properties of molecular materials and present first spectroscopic data of free gadolinium and terbium cluster ions and complexes.