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Van der Waals forces and molecular diffraction from metal surfaces, with application to Ag(111)

Authors
Journal
Chemical Physics
0301-0104
Publisher
Elsevier
Publication Date
Volume
73
Issue
3
Identifiers
DOI: 10.1016/0301-0104(82)85175-6

Abstract

Abstract The van der Waals attraction of an exterior molecule to a metal surface is derived retaining the effects of lattice periodicity in the electric susceptibility of the metal. This periodicity causes first-order diffracted beam intensities which are compared with measured values for scattering from the (111) surface of Ag. In particular, the theory predicts diffracted intensifies of H 2 to be an order of magnitude larger than those for He, as observed in experimental work.

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