Conduction-Band Surface Plasmons in the Electron-Energy-Loss Spectrum of GaAs(110)
- 16 February 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 46 (7) , 500-503
- https://doi.org/10.1103/physrevlett.46.500
Abstract
Apart from Fuchs-Kliewer surface phonons, conduction-band surface plasmons and probably intraband single-particle scattering contribute to the electron-energy-loss spectra (primary energy ∼5 eV, resolution <10 meV) measured on clean, UHV-cleaved, -type GaAs(110) surfaces. Coupling between surface phonons and plasmons derives from frequency shifts which depend on surface carrier concentration.
Keywords
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