We have performed non-UHV studies on the (111) surface of MgO subjected to high temperature annealing (1550-1700°C) in an oxygen rich atmosphere. Reflection electron microscopy shows that the surface is atomically smooth over extended regions and exhibits a (√3 × √3)R30° reconstruction. Superlattice spots were observed in the RHEED patterns after two months exposure to air indicating that meaningful results can be obtained on this system under non-UHV conditions. Surface sensitive REELS indicates that the structure is mainly composed of oxygen.
|Original language||English (US)|
|State||Published - May 3 1991|
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry