Abstract
Abstract A brief survey is presented of a range of recent and current experiments in which medium energy ion scattering has been used to study the structure of metallic surfaces and near-surface interfaces. These include: surface alloy phases on elemental metal substrates in which the presence of interface and sub-surface stacking faults are investigated (Sb on Cu(1 1 1) and Ag(1 1 1)) and the amplitude and origin of surface layer rumpling are identified (Pb on Ni(1 1 1), Sn on Ni(1 1 0), Au and Mn on Cu(1 0 0)); near-surface composition and structure of a Pt 25 Rh 75 (1 1 1) alloy surface; the early stages of oxidation and oxide growth on Ru and Ni surfaces.
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