Abstract
Inelastic electron tunneling spectroscopy and microscopy with a scanning tunneling microscope revealed two vibrational modes showing a decrease in conductance at and sample bias for single oxygen molecules chemisorbed on the fourfold hollow sites of Ag(110) surface at 13 K. The spatial distribution of the vibrational intensities exhibited -orbital (perpendicular to surface) symmetry of with the molecular axis along the [001] direction. These results are attributed to resonant inelastic electron tunneling.
- Received 27 April 2000
DOI:https://doi.org/10.1103/PhysRevLett.85.1914
©2000 American Physical Society