title: Counting electrons transferred through a thin alumina film into Au chains.
abstract: Low-temperature STM measurements combined with density functional theory calculations are employed to study the adsorption of gold on alumina/NiAl(110). The binding of Au monomers involves breaking of an oxide Al-O bond below the adatom and stabilizing the hence undercoordinated O ion by forming a new bond to an Al atom in the NiAl. The adsorption implies negative charging of the adatom. The linear arrangement of favorable binding sites induces the self-organization of Au atoms into chains. For every ad-chain, the number of transfer electrons from the support is determined by analyzing the node structure of the corresponding highest occupied molecular orbital.
authors: Fritz-Haber-Institut der MPG, Faradayweg 4-6, Berlin, Germany. nilius@fhi-berlin.mpg.de
authors: N
authors: N
authors: Nilius
authors: M V
authors: MV
authors: Ganduglia-Pirovano
authors: V
authors: V
authors: Brázdová
authors: M
authors: M
authors: Kulawik
authors: J
authors: J
authors: Sauer
authors: H-J
authors: HJ
authors: Freund