P.S. Bagus, K. Hermann, et al.
Chemical Physics Letters
Scanning tunneling microscopy (STM) studies have shown that scattering of surface state electrons by steps and adsorbates leads to long-range oscillations in the local density-of-states (LDOS). Here we examine the nature of the states probed in the vicinity of the scatterer. We find that at steps, the LDOS primarily reflects the Smoluchowski charge-redistribution process. Perturbation of the surface state by the step extends more than 10 Å from the step-edge and induces bulk-surface state mixing. Unusually narrow spectra and delocalized images are observed for adsorbed sulfur on Ag(111) and are explained in terms of the electronic structure changes induced by chemisorption. © 1995.
P.S. Bagus, K. Hermann, et al.
Chemical Physics Letters
R.J. Hamers, Ph. Avouris, et al.
Physical Review Letters
Ph. Avouris, M.M.T. Loy, et al.
Chemical Physics Letters
Ph. Avouris, A. Afzali, et al.
IEDM 2004