Quantum size effects in the surface-plasmon excitation of small metallic particles by electron-energy-loss spectroscopy

F. Ouyang, P. E. Batson, M. Isaacson

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

Electron-energy-loss spectroscopy was used to study the quantum size effect in surface-plasmon excitations of small metallic particles, with diameters ranging from 4 to 20 nm. Scanning transmission electron microscopy was used, which provided the capability of observing electron-energy-loss spectra from individual, well-characterized silver particles. The measured relation between the surface-plasmon energy and the particle size shows a definite deviation from that predicted by macroscopic theories, and cannot be well explained by existing microscopic theories.

Original languageEnglish (US)
Pages (from-to)15421-15425
Number of pages5
JournalPhysical Review B
Volume46
Issue number23
DOIs
StatePublished - 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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