INTERPRETATION OF HELIUM ATOM SCATTERING FROM ISOLATED CO MOLECULES ON COPPER(001) BASED ON AN EXACT QUANTUM-MECHANICAL MODEL

Authors
CHOI BH TANG KT TOENNIES JP
Citation
Bh. Choi et al., INTERPRETATION OF HELIUM ATOM SCATTERING FROM ISOLATED CO MOLECULES ON COPPER(001) BASED ON AN EXACT QUANTUM-MECHANICAL MODEL, The Journal of chemical physics, 107(5), 1997, pp. 1631-1633
Citations number
8
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
107
Issue
5
Year of publication
1997
Pages
1631 - 1633
Database
ISI
SICI code
0021-9606(1997)107:5<1631:IOHASF>2.0.ZU;2-O
Abstract
The previously reported scattering of He atoms from isolated CO molecu les on Cu(001) has been reinterpreted using an exact quantum mechanica l model assuming a hard hemisphere on a hard flat surface. From a best fit of all the observed oscillations for each incident energy an effe ctive radius for the hemisphere is determined. The radius increases fr om a=2.4 to 4.4 Angstrom as the incident energy decreases from 40.3 to 9.4 meV, as expected in view of the soft repulsion and long-range att raction of the true potential. (C) 1997 American Institute of Physics.