Abstract
We report surface oxidation induced by (1–8) eV electrons incident on condensed on InP(110) at 30 K. The measured reaction cross sections are very much energy dependent with values of (8±4)×, (1±0.5)×, (8±4)×, and (2±1)× for electrons with energies of 1, 2, 5, and 8 eV, respectively. These cross sections exhibit the same energy dependence as molecular-oxygen negative-ion formation, and they are much larger than those related to dissociative electron attachment. The results show that resonant negative-ion formation of is important in surface reactions induced by electron irradiation.
- Received 22 October 1990
DOI:https://doi.org/10.1103/PhysRevB.43.4527
©1991 American Physical Society