Étude de l'énergie de liaison d'ad-atomes de transition sur un substrat de transition par microscopie ionique à champ

Abstract

The field ion microscope with a resolution of 3 A allows to visualise individual atoms. The field desorption of surface atoms depends directly on their binding energy. Evaluation of the desorption field by measurement of the desorption potential led us to give the variation of binding energy for ad-atoms of Ta, W, Re and Ir on a tungsten or iridium substract.