Core level spectroscopy of free titanium clusters in supersonic beams

Details Core level spectroscopy of free titanium clusters in supersonic beams Core level spectroscopy of free titanium clusters in supersonic beams

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006njph....8..136p&link_type=abstract

New Journal of Physics, Volume 8, Issue 8, pp. 136 (2006).

Physics

11

Scientific paper

Synchrotron radiation x-ray absorption spectroscopy (XAS) is one of the most powerful techniques to interrogate the local electronic structure and chemical status of bulk and nanostructured systems. The application of this technique to the study of size effects in free clusters of transition metal atoms would advance substantially fundamental knowledge of nano-objects and the tailoring of their magnetic and catalytic properties. To date core level spectroscopy of free transition metal clusters has been out of reach due to the lack of a cluster source able to produce clusters in the gas phase with a density suitable for synchrotron radiation sources. Here we demonstrate the XAS characterization of free titanium clusters in a supersonic molecular beam. We use a high-intensity cluster beam source coupled to a synchrotron beamline to investigate the size dependence of core level excitation of Tin clusters in the mass range 15

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