Evidence for the presence of the multipole plasmon mode on Ag surfaces
- 15 November 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 54 (20) , R14333-R14336
- https://doi.org/10.1103/physrevb.54.r14333
Abstract
Collective surface electronic excitations on Ag(111) and Ag(110) have been studied by energy-loss-spectroscopy LEED. The data allow separation of the contribution to the loss intensity due to monopole and to multipole surface plasmons, thus demonstrating the existence of the latter mode also on noble-metal surfaces. Multipole plasmons are therefore a general property of the optical response of metal surfaces whenever the charge-density profile at the interface is not too abrupt. © 1996 The American Physical Society.Keywords
This publication has 29 references indexed in Scilit:
- Bulk and surface plasmons in solidsNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1995
- Low-energy EELS investigation of surface electronic excitations on metalsSurface Science Reports, 1995
- The normal modes at the surface of simple metalsSurface Science, 1991
- Multipole plasmon modes at a metal surfacePhysical Review Letters, 1990
- Surface-plasmon dispersion in simple metalsPhysical Review Letters, 1989
- An additional surface plasmon mode of a bare jellium aluminium surface from self-consistent microscopic calculationsJournal of Physics C: Solid State Physics, 1988
- Electronic Screening at Metal Surfaces and the Connection with Physical PhenomenaPhysica Scripta, 1987
- Hydrodynamic models of surface plasmonsPhysical Review B, 1982
- Surface electromagnetic fieldsProgress in Surface Science, 1982
- Influence of the Electron Charge Distribution on Surface-Plasmon DispersionPhysical Review B, 1970