Surface Wave Resonance

Abstract

Surface wave resonance is a peculiar phenomenon in reflection electron diffraction from LEED to RHEED. Its characteristics are 1) the excitation of surface waves, 2) the enhancement of the diffraction pattern, 3) the localized wave field of the incident electron, 4) the many beam effect, 5) its sensitivity to the surface structure and 6) to the surface potential barrier. This phenomenon and its application to the surface structure analysis and other surface studies are discussed on the basis of the characteristics mentioned above. It is pointed out that this phenomenon gives rise to a useful tool for observing a single crystal surface with or without reconstruction and chemisorbed surface.