Work function changes produced by chemisorption due to site heterogeneity |
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Authors: | AD Crowell |
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Institution: | Department of Physics, University of Vermont, Burlington, Vermont 05401, U.S.A. |
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Abstract: | A quantum theory of elastic scattering of atoms from crystal surfaces is presented, based on a hard corrugated surface model. It is shown in detail how the rainbow effect arises and determines the diffraction probabilities, such a rainbow effect being the quantum analogon of McClure's classical rainbow. Further topics considered are the influence of a potential well and the reasons why diffraction hardly occurs from metal surfaces. The basis for a possible extension to inelastic scattering is sketched. |
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