STM topography and manipulation of single Au atoms on Si(100),

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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5

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Physical Review B, Volume 79, issue 24, pp. 1-5

Abstract

The low-temperature (12 K) adsorption of single Au atoms on Si(100) is studied by scanning tunneling microscopy (STM). Comparison between experimental and calculated STM topographies as well as density-functional-theory calculations of the adsorption energies enable us to identify two adsorption configurations of Au atoms between Si-dimer rows (BDRs) and on top of Si-dimer rows (TDRs). In both adsorption configurations, the Au atoms are covalently bound to two Si atoms through a partial electron transfer from Si to Au. STM manipulation confirms that the TDR adsorption configuration is metastable, whereas the BDR one is the most stable configuration.

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Chiaravalloti, F, Riedel, D, Dujardin, G, Pinto, H P & Foster, A S 2009, 'STM topography and manipulation of single Au atoms on Si(100),', Physical Review B, vol. 79, no. 24, 245431, pp. 1-5. https://doi.org/10.1103/PhysRevB.79.245431