AUTHOR=Dorst Arved C. , Dissanayake Rasika E. A. , Schauermann Daniel , Knies Sofie , Wodtke Alec M. , Killelea Daniel R. , Schäfer Tim 

TITLE=Hyperthermal velocity distributions of recombinatively-desorbing oxygen from Ag(111)

JOURNAL=Frontiers in Chemistry

VOLUME=11

YEAR=2023

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2023.1248456

DOI=10.3389/fchem.2023.1248456

ISSN=2296-2646

ABSTRACT=<p>This study presents velocity-resolved desorption experiments of recombinatively-desorbing oxygen from Ag (111). We combine molecular beam techniques, ion imaging, and temperature-programmed desorption to obtain translational energy distributions of desorbing O<sub>2</sub>. Molecular beams of NO<sub>2</sub> are used to prepare a <italic>p</italic> (4 × 4)-O adlayer on the silver crystal. The translational energy distributions of O<sub>2</sub> are shifted towards hyperthermal energies indicating desorption from an intermediate activated molecular chemisorption state.</p>