Mapping the electronic surface potential of nanostructured surfaces.
- Ruffieux P Empa, Swiss Federal Laboratories for Materials Testing and Research, Feuerwerkerstrasse 39, 3602 Thun, Switzerland. pascal.ruffieux@empa.ch
- Aït-Mansour K
- Bendounan A
- Fasel R
- Patthey L
- Gröning P
- Gröning O
- 2009-03-05
Published in:
- Physical review letters. - 2009
English
We present a method for the quantitative determination of the surface potential landscape of nanostructured surfaces based on the local analysis of the lowest field emission resonances by scanning tunneling spectroscopy. The method has a lateral resolution of approximately 1 nm and is applied to elucidate the site-specific adsorption properties of the strain relief pattern formed by two monolayers of Ag on Pt(111). For the example of C60 fullerenes, we show that the surface potential difference of up to 0.35 eV is responsible for the site-selective immobilization on the strain relief pattern.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1103/PhysRevLett.102.086807
- PMID 19257772
- Persistent URL
- https://sonar.ch/global/documents/210163
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