The dependence of the surface plasmon peak intensity on a submonolayer coverage of oxygen in the reflection electron energy loss spectra has been investigated for non-monocrystalline aluminium, magnesium, and indium surfaces. It will be shown that the decrease of the surface plasmon peaks can be related to a modification of the surface plasmons dispersion relation. A simple model for this modification introduced by changes of the surface electron density profile is proposed. Parameters of this model will be determined from experimental data.
Voskoboinikov, A., Voskoboinikov, A., Nakhodkin, N., Kryn'ko, Y., Kulik, S., Melnik, P., & Sheka, D. (1994). Surface plasmon peak intensity dependence on the oxygen coverage at metal surfaces. Solid state communications, 90(90), 27-30. https://doi.org/10.1016/0038-1098(94)90956-3