Abstract
The structure of molecules adsorbed on the Cu(111)-(1×1) surface has been investigated by scanning tunneling microscopy (STM). Bias voltage dependent STM images of individual molecules in the monolayer film showed unique intramolecular structures with a threefold symmetry. The observed images agree well with those calculated using the local density approximation. With charge transfer from the Cu(111) substrate to the monolayer film, the molecule ratchets to threefold hollow sites.
- Received 26 April 1993
DOI:https://doi.org/10.1103/PhysRevLett.71.2959
©1993 American Physical Society