Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12l5020m&link_type=abstract
New Journal of Physics, Volume 12, Issue 12, pp. 125020 (2010).
Physics
4
Scientific paper
By functionalizing the tip of an atomic force microscope (AFM) with a molecule or an atom that significantly contributes to the tip-sample interaction, the resolution can be dramatically enhanced. The interaction and therefore the resolution crucially depend on the chemical nature of the tip termination. Employing a tip functionalized with a CO molecule, atomic resolution of a pentacene molecule was recently demonstrated. In this work, the interaction between the CO tip and the pentacene imaged are studied with first principles calculations. The calculated frequency shifts compare very well with the experiment. The different energy contributions are analyzed and the Pauli energy is computed. We demonstrate that the source of the high resolution is Pauli repulsion, whereas van der Waals and electrostatic interactions only add a diffuse attractive background.
Curioni Alessandro
Gross Leo
Meyer Gerhard
Mohn Fabian
Moll Nikolaj
No associations
LandOfFree
The mechanisms underlying the enhanced resolution of atomic force microscopy with functionalized tips does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The mechanisms underlying the enhanced resolution of atomic force microscopy with functionalized tips, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The mechanisms underlying the enhanced resolution of atomic force microscopy with functionalized tips will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1309660