Abstract
Adsorption of clusters on a bulk MgO(001) surface and on an ultrathin (3 ML) MgO(001) film supported by Mo metal is investigated via density-functional theory calculations. Comparison of the two substrates unambiguously shows that the gold clusters adsorbed on turn into singly charged cluster anions , . Their structures and internal charging patterns are analogous to singly charged, planar, gas-phase cluster anions . The adsorption energy has prominent size-dependent odd-even oscillations, correlating fully with the known electron affinity of gas-phase Au clusters in this size range.
- Received 18 June 2007
DOI:https://doi.org/10.1103/PhysRevB.76.073406
©2007 American Physical Society