Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1505799 | Solid State Sciences | 2010 | 4 Pages |
Abstract
High-resolution electron energy loss spectroscopy has been used to study low-energy bulk excitation modes of planar-bound electrons (bulk plasmons) in nickel. We observed for the first time a bulk plasmon at about 1.2 eV, in agreement with dielectric theory. The behavior of its amplitude with the off-specular angle ensures the dipolar nature of such mode. On the other hand, the intensity of the plasmon peak is vanishing upon ion bombardment due to the sputtering-induced modification of dielectric function.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Antonio Politano, Gennaro Chiarello,