Physical Review Letters · 1980 · 149 citations · 7 references
EngineeringNuclear PhysicsChemistryLow-energy IonsIon ProcessIon BeamHigh-energy Nuclear ReactionPhysicsNuclear TheoryAtomic PhysicsRadiation TransportPhysical ChemistryClean NiNeutralization ProbabilitiesClean SurfacesNatural SciencesSpectroscopySurface ScienceApplied PhysicsWave ScatteringLight ScatteringCrystal OrientationIon StructureRare-gas-ion Scattering
The first experimental comparison of ${\mathrm{Li}}^{+}$ and ${\mathrm{He}}^{+}$ scattering (primary energies between 100 and 1200 eV) from a clean Ni(110) surface shows strong variations of the ${\mathrm{Li}}^{+}$ intensity with crystal orientation, an effect which we attribute to multiple scattering. In the ${\mathrm{He}}^{+}$ case, only those ${\mathrm{He}}^{+}$ which scattered from surface atoms in single binary collisions survived as ions. The energy dependence of differential scattering cross sections is obtained from the experiments as well as the ratio of the neutralization probabilities of ${\mathrm{Li}}^{+}$ and ${\mathrm{He}}^{+}$ in the single-scattering events.
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