Plasmons are investigated in free nanoscale Na, Mg, and K metal clusters using synchrotron radiation-based x-ray photoelectron spectroscopy. The core levels for which the response from bulk and surface atoms can be resolved are probed over an extended binding energy range to include the plasmon loss features. In all species the features due to fundamental plasmons are identified, and in Na and K also those due to either the first order plasmon overtones or sequential plasmon excitation are observed. These features are discussed in view of earlier results for planar macroscopic samples and free clusters of the same materials.
The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Max-laboratory (011012005), Chemical Physics (S) (011001060), Synchrotron Radiation Research (011013009)
- Atom- och molekylfysik och optik