Coronene on Ag(111) Investigated by LEED and STM in UHV
(Result of the month 07/2002)
Coronene on Ag(111) A coverage of 1.5 % of a monolayer leads to isolated molecules on the Ag(111) surface. The single molecules are surrounded by concentric rings of standing electron waves, which can be observed at room temperature.
The adsorption of the aromatic molecule hexabenzobezene (coronene) on a Ag(111) single crystal surface was investigated under UHV conditions by means of LEED and variable temperature STM. For a very low coverage randomly distributed individual molecules adsorbed on terraces were found. All molecules are surrounded by concentric rings caused by scattering of surface electrons, leading to the formation of standing waves.


Data courtesy of : Markus Lackinger [A], Stefan Griessl [B], Wolfgang M. Heckl [B], Michael Hietschold [A],
[A] Chemnitz University of Technology, Institute of Physics, Chemnitz, Germany;
[B] Ludwig-Maximilians-University Munich, Institute of Crystallography and Applied Mineralogy, Muenchen, Germany; Markus Lackinger, Stefan Griessl, Wolfgang M. Heckl and Michael Hietschold B, Coronene on Ag(111) Investigated by LEED and STM in UHV J. Phys. Chem. B (2002), 106, 4482 - 4485

 
This result has been obtained with :
Variable Temperature UHV SPM

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SPM
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