TY - JOUR
T1 - Atom scattering from isolated molecular adsorbates on surfaces
T2 - Effects of adsorbate orientation
AU - Petrella, G.
AU - Yinnon, A. T.
AU - Gerber, R. B.
PY - 1989/6/9
Y1 - 1989/6/9
N2 - The scattering of He atoms from O2 molecules adsorbed on a flat surface is studied, and comparison is made of models in which the O2 is respectively perpendicular and parallel to the surface. The sudden approximation is used to calculate both the angular intensity distribution of the scattered atoms at fixed incidence energy, and the integral cross section for scattering by the adsorbate as a function of collision energy. Significant differences are found in both the cross sections and the angular intensities between scattering by the parallel and by the perpendicular adsorbate. The possible use of He scattering to study adsorbate orientation is discussed in the light of the results.
AB - The scattering of He atoms from O2 molecules adsorbed on a flat surface is studied, and comparison is made of models in which the O2 is respectively perpendicular and parallel to the surface. The sudden approximation is used to calculate both the angular intensity distribution of the scattered atoms at fixed incidence energy, and the integral cross section for scattering by the adsorbate as a function of collision energy. Significant differences are found in both the cross sections and the angular intensities between scattering by the parallel and by the perpendicular adsorbate. The possible use of He scattering to study adsorbate orientation is discussed in the light of the results.
UR - http://www.scopus.com/inward/record.url?scp=0040285777&partnerID=8YFLogxK
U2 - 10.1016/0009-2614(89)87330-0
DO - 10.1016/0009-2614(89)87330-0
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AN - SCOPUS:0040285777
SN - 0009-2614
VL - 158
SP - 250
EP - 256
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 3-4
ER -