Intermolecular contrast in atomic force microscopy images without intermolecular bonds
| Autor: | Hämäläinen, Sampsa K., van der Heijden, N.J. (Nadine), van der Lit, Joost, den Hartog, Stephan, Liljeroth, Peter, Swart, Ingmar, Condensed Matter and Interfaces, Sub Condensed Matter and Interfaces, Sub Practicum |
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| Přispěvatelé: | Condensed Matter and Interfaces, Sub Condensed Matter and Interfaces, Sub Practicum, Department of Applied Physics, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Flexibility (anatomy)
Materials science ta221 General Physics and Astronomy FOS: Physical sciences Model system Nanotechnology carbon monoxide (CO) -terminated tip Organic molecules Mesoscale and Nanoscale Physics (cond-mat.mes-hall) medicine Molecule ta218 hydrogen bond ta214 non-contact atomic force microscopy (AFM) ta114 Condensed Matter - Mesoscale and Nanoscale Physics Hydrogen bond Atomic force microscopy Intermolecular force Contrast (music) medicine.anatomical_structure Chemical physics intermolecular contrast |
| Zdroj: | Physical Review Letters, 113(18). American Physical Society Physical Review Letters |
| ISSN: | 0031-9007 |
| Popis: | Intermolecular features in atomic force microscopy images of organic molecules have been ascribed to intermolecular bonds. A recent theoretical study [P. Hapala et al., Phys. Rev. B 90, 085421 (2014)] showed that these features can also be explained by the flexibility of molecule-terminated tips. We probe this effect by carrying out atomic force microscopy experiments on a model system that contains regions where intermolecular bonds should and should not exist between close-by molecules. Intermolecular features are observed in both regions, demonstrating that intermolecular contrast cannot be directly interpreted as intermolecular bonds. |
| Databáze: | OpenAIRE |
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