Coupled-channel calculations and the accuracy of the sudden approximation for atom-surface scattering

A. T. Yinnon*, S. Bosanac, R. B. Gerber, J. N. Murrell

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Exact coupled-channel calculations are presented for the scattering of Ne from W(110) and He from LiF(001), using symmetry to partly decouple the scattering equations. The results are used to test the recently proposed sudden approximation. For Ne/W(110), typical of all metals, the sudden approximation gives excellent quantitative accuracy. For the very unfavorable system He/LiF(001) good semiquantitative agreement is found with the exact results. It is concluded that the sudden approximately provides an efficient and accurate tool for atom-surface scattering calculations.

Original languageEnglish
Pages (from-to)364-367
Number of pages4
JournalChemical Physics Letters
Volume58
Issue number3
DOIs
StatePublished - 1 Oct 1978

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