First‐order perturbation solution for rough surface scattering cross section including the effects of gradients

1994 ◽  
Vol 96 (3) ◽  
pp. 1748-1754 ◽  
Author(s):  
John E. Moe ◽  
Darrell R. Jackson
Keyword(s):  
Rough Surface ◽  
Cross Section ◽  
Perturbation Solution ◽  
Scattering Cross Section ◽  
Order Perturbation ◽  
Surface Scattering ◽  
Rough Surface Scattering ◽  
First Order ◽  
Scattering Cross ◽  
First Order Perturbation

EFFECT OF van der WAALS FORCES ON ATOM-SURFACE SCATTERING

1994 ◽  
Vol 01 (01) ◽  
pp. 109-114 ◽  
Author(s):  
ANDREA C. LEVI ◽  
DANIELE PASSERONE
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Scattering Cross Section ◽  
Surface Scattering ◽  
Hard Wall ◽  
Wall Model ◽  
Interesting Effect ◽  
Scattering Cross

Besides generating the attractive well in the vicinity of a surface, van der Waals forces cause another interesting effect in atom-surface scasttering: they modify the phase of the atom along its semiclassical trajectory, determining thereby a very large scattering cross section from either adsorbed impurities or growth hillocks. Such effects are discussed and calculated in the framework of the hard-wall model for the unperturbed surface, and the results are compared with the experimental data obtained for CO on Pt by the Jülich group and for the Pd growth hillocks observed (in the form of truncated pyramids) on MgO by the Marseille group.

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