STRUCTURE DETERMINATIONS AT INTERFACES AND OXIDE SURFACES USING ESDIAD

The technique of electron-stimulated desorption ion angular distributi on (ESDIAD) has emerged in its own right over the last decade as a mea ns of determining the geometry of surface, adsorbed species. The princ iples underlying the operation and limits of the technique will be bri efly discussed, and, in turn, (1) findings at interfaces of silicon wi th adsorbed water, and (2) recent work at oxide TiO2 surfaces, both cl ean and with adsorbed gases, are outlined.