Nov, 2009
Electronic excitation processes in rare gas clusters studied by electron energy loss spectroscopy
APPLIED SURFACE SCIENCE
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- Volume
- 256
- Number
- 4
- First page
- 1046
- Last page
- 1049
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1016/j.apsusc.2009.05.074
- Publisher
- ELSEVIER SCIENCE BV
We present the electron energy loss spectra for Ar clusters as a function of incident electron energy and of cluster size. In spectra measured with 100 eV incident electron energy the bulk excitation peak becomes visible for a mean cluster size above 170 atoms per cluster. For 250 eV incident electron energy the bulk excitation peak is clearly observable even for a mean cluster size of 120 atoms per cluster. These experimental results are qualitatively reproduced by a simple calculation that accounts for the mean free path of electrons in Ar clusters; i.e., the penetration depth of incident electrons into the cluster. (C) 2009 Elsevier B.V. All rights reserved.
- Link information
- ID information
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- DOI : 10.1016/j.apsusc.2009.05.074
- ISSN : 0169-4332
- Web of Science ID : WOS:000272342300031