Abstract
A method has been developed for preparing nearly perfect (047) surfaces of single-crystal Ti 2O 3 for studies of surface electronic structure, chemisorption and the origin of strong metal/support interactions. Ion bombardment followed by rapid annealing to 585°C produces a surface whose ultraviolet and X-ray photoemission spectra and LEED patterns are essentially identical to those of cleaved surfaces. Exposure of the sputtered and annealed surface to O 2 produces changes in the surface band structure that are in excellent agreement with the data for cleaved surfaces. The manner in which the properties of ion-bombarded Ti 2O, surfaces change with annealing temperature indicates that the five-fold coordinated Ti 2O 3(047) surface has one of the lowest surface energies in the Ti oxide system.
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