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Journal Article

Self-organization of gold atoms on a polar FeO(111) surface

MPS-Authors
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Nilius,  Niklas
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Rienks,  Emile D. L.
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Rust,  Hans-Peter
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Freund,  Hans-Joachim
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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e066101.pdf
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Citation

Nilius, N., Rienks, E. D. L., Rust, H.-P., & Freund, H.-J. (2005). Self-organization of gold atoms on a polar FeO(111) surface. Physical Review Letters, 95(06), 066101–1-066101–4. doi:10.1103/PhysRevLett.95.066101.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-07F6-1
Abstract
The spatial distribution of single Au atoms on a thin FeO film has been investigated by low-temperature scanning tunneling microscopy and spectroscopy. The adatoms preferentially adsorb on distinct sites of the Moiré cell formed by the oxide layer and the Pt(111) support and arrange into a well-ordered hexagonal superlattice with 25 Å lattice constant. The self-organization is the consequence of an inhomogeneous surface potential within the FeO Moiré cell and substantial electrostatic repulsion between the adatoms.