Quantum Size Effects in Excitations of Potassium Clusters
- 7 November 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 61 (19) , 2249-2252
- https://doi.org/10.1103/physrevlett.61.2249
Abstract
The electronic excitations of potassium clusters embedded in a MgO matrix have been investigated as a function of cluster size and momentum transfer by means of electron-energy-loss spectroscopy. The experimental results show deviations from predictions of classical electrodynamics but they are in qualitative agreement with a calculation for excitations of a jellium sphere made with use of the time-dependent local-density approximation.Keywords
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