Counting electrons transferred through a thin alumina film into Au chains |
| |
Authors: | Nilius N Ganduglia-Pirovano M V Brázdová V Kulawik M Sauer J Freund H-J |
| |
Institution: | Fritz-Haber-Institut der MPG, Faradayweg 4-6, Berlin, Germany. nilius@fhi-berlin.mpg.de |
| |
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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|