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Published on: June 9, 2023
Dissociation of oxygen on Ag(100) induced by inelastic electron tunneling
Carsten Sprodowski1, Michael Mehlhorn, Karina Morgenstern
1Institut für Festkörperphysik, Abteilung ATMOS, Leibniz Universität Hannover, Appelstrasse 2, D-30167 Hannover, Germany.
Abstract:
Scanning tunneling microscopy (STM) is used to study the dissociation of molecular oxygen on Ag(100) induced by inelastic electron tunneling (IET) at 5 K. This dissociation is possible above 3.3 V with a yield of (3.63 ± 0.47) × 10(-9) per electron. Dissociation leads to three different types of hot atom motion: lateral motion, a cannon ball mechanism, and abstractive dissociation. Analysis of the I-t characteristics during dissociation suggests that the dissociation is proceeded by an adsorption site change.
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