Controlled vertical manipulation of single CO molecules with the scanning tunneling microscope: A route to chemical contrast
- 14 July 1997
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 71 (2) , 213-215
- https://doi.org/10.1063/1.119503
Abstract
A reliable procedure for controlled vertical transfer of single CO molecules between a Cu(111) surface and a scanning tunneling microscope tip and vice versa is demonstrated. It is shown that with a tip having a single CO molecule at its apex, chemical contrast is achieved allowing distinction of adsorbed CO molecules and oxgen atoms, which look very similar to the bare metal tip.Keywords
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