Showing papers by "Ronan McGrath published in 1994"
TL;DR: In this paper, the early stages of oxygen adsorption on Ni(100) surfaces have been studied using spot-profile-analysis low energy electron diffraction (SPA-LEED) and scanning tunnelling microscopy (STM).
26 citations
TL;DR: In this paper, room temperature scanning tunnelling microscope images of the Ge(001) surface show pinning of small domains of c(4 × 2) and p(2 × 2), by defects and contaminants.
3 citations
TL;DR: Available structural determinations are consistent with current models of work function behavior and a decrease in work function upon oxygen adsorption appears to be a necessary (but not sufficient) indicator for ordering of the overlayer.
Abstract: Available work function data and LEED data for alkali-oxygen transition metal coadsorption systems are summarised. The systems may be categorised as one of two types based on their work function behavior. A decrease in work function upon oxygen adsorption appears to be a necessary (but not sufficient) indicator for ordering of the overlayer. Available structural determinations [including our recent SPA-LEED/STM work on K–O/Ni(100)-(3×3)] are consistent with current models of work function behavior.
2 citations
TL;DR: In this article, it was shown that room temperature adsorption of CO on K pre-covered Ni(100) surfaces causes a strong ordering effect, as observed using low energy electron diffraction.
1 citations