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Report No.
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Restoration of oxygen vacancies on an anatase TiO$$_{2}$$(001) surface with supersonic seeded oxygen molecular beam

Katsube, Daiki*; Ono, Shinya*; Inami, Eiichi*; Yoshigoe, Akitaka ; Abe, Masayuki*

The oxidation of oxygen vacancies at the surface of anatase TiO$$_{2}$$ (001) was investigated by synchrotron radiation photoelectron spectroscopy and supersonic O$$_{2}$$ beam (SSMB). The oxygen vacancies at the top surface and subsurface could be eliminated by the supply of hyperthermal oxygen molecules. Oxygen vacancies are present on the surface of anatase TiO$$_{2}$$(001) when it is untreated before transfer to a vacuum chamber. These vacancies, which are stable in the ambient condition, could also be effectively eliminated by using oxygen SSMB. This result is promising as a surface processing for various functional oxides.

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