Abstract
The electronic state of oxygen adsorbed on a Cr(110) surface at 80 K has been studied by angle-resolved photoemission spectroscopy with synchrotron radiation. Dissociative chemisorption occurs up to 1/4 2 L, and then oxidation starts at 1/4 4 L, leading to the formation of a disordered Cr2O3 layer. An emission at 1/47.5 eV below the Fermi energy, being attributable to a chemisorbed O2 molecule, was observed at above 1/4 20 L. Dispersion effects on the O2pderived levels were found for the Cr(110)p(4×2)-O and faceted Cr(110)-O surfaces produced by annealing.
| Original language | English |
|---|---|
| Pages (from-to) | 7345-7348 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 38 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1988 |