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Beschreibungen/Notizen
Point defects on oxide surfaces, presumably oxygen vacancies, are traditionally considered preferential nucleation centers for metal island formation. In a series of first-principles calculations for transition and noble metal nucleation on MgO(1
0
0), we show that the propensity for neutral anion vacancies to nucleate metal islands is strongly element dependent: To the right in a period, where d-shell filling is substantial, vacancies typically
inhibit nucleation, whereas the opposite holds for far-left elements. This bears significant implications for the system-specific design of metal–oxide interface properties.