Multipole surface-plasmon-excitation enhancement in metals

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

We consider the energy losses undergone by an electron reflected inside the extended electron-density distribution at the surface of a metal. The random-phase approximation calculation of the dynamical response with a local-density approximation ground state reveals the dramatic enhancement of the multipole-plasmon intensity compared with the conventionally considered reflection in vacuum above the surface. Our calculations conciliate the theory and the electron-energy-loss spectroscopy experiment with regard to the multipole surface-plasmon intensity, which has been predicted by previous theories to be two orders of magnitude smaller than the experimental one. The influence of the nonzero electron density along the incident electron path on the surface and the bulk-plasmon generation is also discussed.

Original languageAmerican English
Pages (from-to)9866-9869
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number15
DOIs
StatePublished - 1999
Externally publishedYes

Fingerprint

Dive into the research topics of 'Multipole surface-plasmon-excitation enhancement in metals'. Together they form a unique fingerprint.

Cite this