He beam scattering from a (√3 × √3)R30° lattice of xenon adsorbed on the graphite (0001) surface is measured. The experimental data at normal incidence, fitted by the hard-wall model and the eikonal approximation, yield a peak-to-peak corrugation amplitude of 0.88±0.02 Å. The agreement is only qualitative and points to the need for a more accurate analysis, with calculations suitable for large corrugation amplitudes.
Diffraction of He atoms from a Xe overlayer adsorbed on graphite (0001)
BRACCO, GIANANGELO;TATAREK, RODOLFO
1983-01-01
Abstract
He beam scattering from a (√3 × √3)R30° lattice of xenon adsorbed on the graphite (0001) surface is measured. The experimental data at normal incidence, fitted by the hard-wall model and the eikonal approximation, yield a peak-to-peak corrugation amplitude of 0.88±0.02 Å. The agreement is only qualitative and points to the need for a more accurate analysis, with calculations suitable for large corrugation amplitudes.
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