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Resonance electronic excitation in electron scattering from oriented O2 on graphite

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
200 KB
Volume
41
Category
Article
ISSN
0042-207X

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Resonant electronic excitation of O2 on
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A high-resolution electron-energy-loss spectroscopic study of Ox monolayers physisorbed on graphite (in the Q-phase) reveals a resonance in the cross section for the X 2; -+a '4 electronic excitation of O2 at an electron beam energy of 8 eV, and is attributed to the formation of a temporary negative

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We have investigated resonance electron scattering by both physisorbed and chemisorbed molecular O2 on Pt( 111). In each case, the molecular &-shape resonance is manifest in the vibrational excitation cross section but the resonance energy is lowered in comparison with the free molecule. We attribut

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We have investigated the production of O-, 02 and 01 ions by electron-stimulated desorption from well-ordered films of physisorbed O2 on graphite. Resonances observed in the yield ofall products as a function ofelectron impact energy are attributed to dissociative electron attachment, generating O-i