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M. Tchaplyguine, A.S. Peredkov, A. Rosso, J. Schulz, G. Öhrwall, M. Lundwall, T. Rander, A. Lindblad, H. Bergersen, W. Pokapanich, S. Svensson, S. L. Sorensen, N. Mårtensson, and O. Björneholm
Observation of the non-supported metal nanoparticle electron density of states by X-ray photoelectron spectroscopy
Eur. J. Phys D 45, 295 (2007)

Abstract
Synchrotron-based X-ray photoelectron spectroscopy on copper and silver cluster beams created by a magnetron-based gas-aggregation source has allowed mapping the electron density of states (DOS) of free metallic nanoparticles. The cluster DOS profiles obtained in the experiments strongly resemble the infinite solid DOS shapes, but the extracted cluster work-functions are lower than those for the bulk metal. The latter observation is explained by the initial negative charge on most of the clusters, created by the source.

Link to the complete paper (if available):
http://www.springerlink.com/content/nv28217857377404/


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