Ion-scattering structure studies of UO2 surfaces |
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| Authors: | W.P. Ellis T.N. Taylor |
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| Affiliation: | Los Alamos Scientific Laboratory, University of California, Los Alamos, New Mexico 8 7545, USA |
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| Abstract: | Planar (111) and stepped (553) surfaces of single crystalline UO2 have been studied by low-energy He+ ion scattering spectroscopy, (ISS). Angular dependent ISS and comparison data from oxide-coated, polycrystalline U indicate that the outermost layer of UO2(111) is oxygen occupying, to a first approximation, the lattice position expected from a simple termination of bulk structure. A similar study of UO2(553) indicates that ledge U is covered with excess oxygen. |
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