| Issue |
Europhys. Lett.
Volume 56, Number 2, October 2001
|
|
|---|---|---|
| Page(s) | 254 - 260 | |
| Section | Condensed matter: structural, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00514-3 | |
| Published online | 01 December 2003 | |
Supramolecular self-assembly and selective step decoration on the Au(111) surface
1
Institut Romand de Recherche Numérique en
Physique des Matériaux (IRRMA) PPH-Ecublens - 1015 Lausanne, Switzerland
2
INFM and Dipartimento di Ingegneria dei Materiali, Università
di Trieste via A. Valerio 2, 34127 Trieste, Italy
3
Institut de la Physique de la Matière Condensée,
Université de Lausanne 1015 Lausanne, Switzerland
4
Institut für Experimentelle und Angewandte Physik,
Christian-Albrechts-Universität D-24098 Kiel, Germany
Received:
16
February
2001
Accepted:
30
July
2001
Scanning tunneling microscopy of low coverages of 1-nitronaphtalene (NN) on reconstructed Au(111) reveals that the face-centered-cubic (fcc) reconstruction domains of steps are densely and selectively decorated. Molecular dynamics simulations identify this phenomenon as the self-assembly of hydrogen-like bonded supramolecular chains driven by the step electrostatic potential. First principles calculations predict weak adsorption at domain boundaries, and stable adsorption at the step edge of the fcc domains, explaining the selective decoration.
PACS: 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals / 68.37.Ef – Scanning tunneling microscopy (including chemistry induced with STM) / 82.30.Nr – Association, addition, insertion, cluster formation
© EDP Sciences, 2001
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