TY - JOUR
T1 - Coupled-channel calculations and the accuracy of the sudden approximation for atom-surface scattering
AU - Yinnon, A. T.
AU - Bosanac, S.
AU - Gerber, R. B.
AU - Murrell, J. N.
PY - 1978/10/1
Y1 - 1978/10/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=3643125922&partnerID=8YFLogxK
U2 - 10.1016/0009-2614(78)85054-4
DO - 10.1016/0009-2614(78)85054-4
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AN - SCOPUS:3643125922
SN - 0009-2614
VL - 58
SP - 364
EP - 367
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 3
ER -