Affordable Access

Intermolecular contrast in atomic force microscopy images without intermolecular bonds.

Authors
  • Hämäläinen, Sampsa K
  • van der Heijden, Nadine
  • van der Lit, Joost
  • den Hartog, Stephan
  • Liljeroth, Peter
  • Swart, Ingmar
Type
Published Article
Journal
Physical Review Letters
Publisher
American Physical Society
Publication Date
Oct 31, 2014
Volume
113
Issue
18
Pages
186102–186102
Identifiers
PMID: 25396382
Source
Medline
License
Unknown

Abstract

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.

Report this publication

Statistics

Seen <100 times