Sputter-induced photon spectroscopy of clean and sulfidized Fe-Cr-Mo single crystal surfaces
Abstract
Photon emission during argon ion sputterng of an Fe-18Cr-3Mo(100) surface was observed for clean, sulfur and carbon covered, and oxygen covered conditions. Auger spectroscopy was used to determine surface compositions. Measurements of intensity of iron and chromium emission lines as a function of time after introduction of oxygen to the system showed that enhancement of emission from chromium occurred considerably more rapidly than that from iron. We conclude that enhancement is local in origin and that it is due to an increase in the fraction of sputtered neutrals that are electronically excited. Sulfur and carbon produced little or no increase in photon emission.
- Publication:
-
Surface Science
- Pub Date:
- January 1985
- DOI:
- 10.1016/S0039-6028(85)80014-5
- Bibcode:
- 1985SurSc.149...81H