Imaging of individual adatoms on oxide surfaces by dynamic force microscopy

Georg Hermann Simon, Thomas König, Hans-Peter Rust, Maria Verónica Ganduglia-Pirovano, Joachim Sauer, Markus Heyde, and Hans-Joachim Freund
Phys. Rev. B 81, 073411 – Published 25 February 2010

Abstract

An experimental study of the adsorption sites of metal adatoms on an oxide surface is presented. The adsorption sites of gold on the ultrathin aluminum oxide grown on NiAl(110) are determined. For the study low-temperature frequency modulation dynamic force microscopy is employed to identify the adsorption sites in real space. Results show that wave trough-like depressions in the alumina surface are preferred locations for gold adspecies.

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  • Received 15 December 2009

DOI:https://doi.org/10.1103/PhysRevB.81.073411

©2010 American Physical Society

Authors & Affiliations

Georg Hermann Simon1, Thomas König1, Hans-Peter Rust1, Maria Verónica Ganduglia-Pirovano2,*, Joachim Sauer2, Markus Heyde1,†, and Hans-Joachim Freund1

  • 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
  • 2Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany

  • *Present address: Institute of Catalysis and Petrochemistry (ICP-CSIC), Campus UAM, Cantoblanco, 28049 Madrid, Spain.
  • heyde@fhi-berlin.mpg.de

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Issue

Vol. 81, Iss. 7 — 15 February 2010

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