Abstract

Optical second harmonic generation (SHG) is a promising new surface-sensitive technique that allows study of electronic structure and surface ordering for submonolayer coverages of adsorbates at pressures not accessible using more conventional surface probes. Furthermore, SHG is well-suited to probing buried interfaces between a thin overlayer and a substrate. We report here recent studies of adsorption and segregation on clean single crystal Fe-18Cr-3Mo (110) surfaces in ultra-high vacuum using SHG, low energy electron diffraction (LEED), and Auger observations.

© 1987 Optical Society of America