Counting Electrons Transferred through a thin Alumina Film into Au ad-chains

نویسندگان

  • N. Nilius
  • M. Kulawik
چکیده

Low-temperature STM measurements combined with DFT 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 under-coordinated 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 HOMO.

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Counting electrons transferred through a thin alumina film into Au chains.

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تاریخ انتشار 2009