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Scattering of pulsed hyperthermal beams of Cl 2 by a Si(100) surface is studied at 300 K and 45° incidence. The beams are produced by laser vaporization of cryogenic Cl 2 films and contain ≤14% Cl. The beams have a broad range of translational kinetic energies up to 6 eV; with velocity selection, beams with a narrow kinetic energy distribution and energies up to 2.6 eV are also used...
The dynamics of dissociative hydrogen adsorption on the W(100)-c(2 2)Cu surface have been studied with a supersonic molecular beam. The surface is observed to present a higher barrier to direct dissociation than W(100) where this channel is non-activated. The removal of the direct channel at low energies reveals a pure indirect channel, allowing for the first time the study of an isolated indirect...
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