2009/10/07 by Guillaume Schull, Thomas Frederiksen, Mads Brandbyge +1 · 2 citations
Engineering · Materials Science · Physics and Astronomy · #Force Microscopy Techniques and Applications #Graphene research and applications #Molecular Junctions and Nanostructures #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.103.206803
published as Phys. Rev. Lett. 103, 206803 (2009) · 4 pages, 4 figures (+ suppl. material 2 pages, 1 figure)
arxiv created 2009/10/07 · openalex publication_date 2009/11/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
The charge flow from a single C(60) molecule to another one has been probed. The conformation and electronic states of both molecules on the contacting electrodes have been characterized using a cryogenic scanning tunneling microscope. While the contact conductance of a single molecule between two Cu electrodes can vary up to a factor of 3 depending on electrode geometry, the conductance of the C(60)-C(60) contact is consistently lower by 2 orders of magnitude. First-principles transport calculations reproduce the experimental results, allow a determination of the actual C(60)-C(60) distances, and identify the essential role of the intermolecular link in bi- and trimolecular chains.