Harpooning in scattering of O2 + from Ag(111): Dependence on initial beam energy and direction
- 1 July 1989
- journal article
- research article
- Published by Taylor & Francis in Radiation Effects and Defects in Solids
- Vol. 109 (1-4) , 41-46
- https://doi.org/10.1080/10420158908220518
Abstract
Harpooning transitions have been observed in collisions of O2 + at energies E i = 100–400 eV from Ag(111) leading to O− and O2 − ions. Specular scattering is predominant. The degree of dissociation of the negative ions observed seems to scale with E n = E i cos2(θ i ) and depends on the azimuthal angle. It is argued that collision induced dissociation is the major cause of the dissociation observed.Keywords
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