Tracing electronic pathways in molecules by using inelastic tunneling spectroscopy
Troisi, Alessandro, Beebe, Jeremy M., Picraux, Laura B., van Zee, Roger D., Stewart, Duncan R., Ratner, Mark A. and Kushmerick, James G.. (2007) Tracing electronic pathways in molecules by using inelastic tunneling spectroscopy. Proceedings of the National Academy of Sciences of the United States of America, Vol.104 (No.36). pp. 14255-14259. ISSN 0027-8424Full text not available from this repository.
Official URL: http://dx.doi.org/10.1073/pnas.0704208104
Using inelastic electron tunneling spectroscopy (IETS) to measure the vibronic structure of nonequilibrium molecular transport, aided by a quantitative interpretation scheme based on Green's function-density functional theory methods, we are able to characterize the actual pathways that the electrons traverse when moving through a molecule in a molecular transport junction. We show that the IETS observations directly index electron tunneling pathways along the given normal coordinates of the molecule. One can then interpret the maxima in the IETS spectrum in terms of the specific paths that the electrons follow as they traverse the molecular junction. Therefore, IETS measurements not only prove (by the appearance of molecular vibrational frequencies in the spectrum) that the tunneling charges, in fact, pass through the molecule, but also can be used to determine the transport pathways and how they change with the geometry and placement of molecules in junctions.
|Item Type:||Journal Article|
|Divisions:||Faculty of Science > Chemistry
Faculty of Science > Centre for Scientific Computing
|Journal or Publication Title:||Proceedings of the National Academy of Sciences of the United States of America|
|Publisher:||National Academy of Sciences|
|Date:||4 September 2007|
|Number of Pages:||5|
|Page Range:||pp. 14255-14259|
|Access rights to Published version:||Restricted or Subscription Access|
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