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Applied Physics A

, Volume 80, Issue 5, pp 913–920 | Cite as

Contacting a single molecular wire by STM manipulation

  • F. MorescoEmail author
  • L. Gross
  • L. Grill
  • M. Alemani
  • A. Gourdon
  • C. Joachim
  • K.H. Rieder
Article

Abstract

The Lander molecule (C90H98) consists of a long polyaromatic molecular wire and four lateral di-tert-butyl-phenyl spacer groups, designed to maintain the molecular wire parallel above the substrate. It represents a model system for investigating the electronic contacts of a molecular wire to a nanoscale metallic electrode. In this article, some recent manipulation experiments of single Lander molecules by low temperature scanning tunneling microscopy (LT-STM) are presented. The selective adsorption of the molecule, the molecule-induced reconstruction of copper substrates, and their application to the investigation of contacts between molecules and nanostructures or between molecules are discussed. Manipulation experiments are reported, where the molecular wire part of a Lander molecule is contacted to a monoatomic step and to a two-atom-wide metallic nanostructure. The contact is characterized by the apparent height of the contact point in STM images and, in case of the Cu(111) substrate, by the perturbation observed in the electronic standing wave patterns.

Keywords

Step Edge Molecular Wire Standing Wave Pattern Central Wire Electronic Contact 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • F. Moresco
    • 1
    Email author
  • L. Gross
    • 1
  • L. Grill
    • 1
  • M. Alemani
    • 1
  • A. Gourdon
    • 2
  • C. Joachim
    • 2
  • K.H. Rieder
    • 1
  1. 1.Institut für ExperimentalphysikFreie Universität BerlinBerlinGermany
  2. 2.Nanoscience Group, CEMES-CNRSToulouseFrance

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