Influence of the electron density profile on surface plasmons in a hydrodynamic model
- 15 March 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 11 (6) , 2118-2121
- https://doi.org/10.1103/physrevb.11.2118
Abstract
The effect of the electron density profile at the surface of a metal on the surface-plasma modes is studied within the framework of a hydrodynamic model. For a sufficiently diffuse surface, higher multipole excitations can exist in addition to the usual surface plasmon. The frequency of both kinds of modes is studied in the long-wavelength limit.Keywords
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