T. Nagatomi et al., NEW ENERGY-LOSS FUNCTIONS FOR 1 KEV ELECTRONS INCIDENT ON CLEAN AND OXYGEN-ADSORBED SI(111) SURFACES, Surface science, 416(1-2), 1998, pp. 184-191
Effective energy loss functions for 1 keV electrons incident on therma
lly cleaned and oxygen-adsorbed Si (111) have been derived from reflec
tion electron energy loss spectroscopy data using an extended Landau t
heory. Ill the effective energy loss functions for the clean Si(lll) s
urface, fine loss structures can be seen distinctly. Comparison of the
effective energy loss functions for the oxygen-adsorbed surface with
those for the clean surface reveals that contributions from surface ex
citation are quite sensitive to oxygen adsorption. (C) 1998 Elsevier S
cience B.V. All rights reserved.