Abstract
A scanning tunneling microscope is used to study the differential conductance (dI/dV) of single C 60 molecules in isolation and in monolayers adsorbed on NiAl(110) and on an ultrathin alumina film grown on the NiAl-(110) surface. On the oxide layer, the electronic bands in the dI/dV spectra display a series of equally spaced features, attributed to the vibronic states of the molecules, which are absent when the molecules are adsorbed on the metal. A comparison between the molecular spectra measured on the oxide film reveals the effect of adsorption temperature and geometry, as well as intermolecular interactions on the vibronic features.
Original language | English |
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Pages (from-to) | 8513-8518 |
Number of pages | 6 |
Journal | Journal of Physical Chemistry B |
Volume | 109 |
Issue number | 17 |
DOIs | |
Publication status | Published - 5 May 2005 |
Externally published | Yes |