VAN-DER-WAALS INTERACTION OF FINITE METALLIC SYSTEMS - A STUDY OF CLUSTER-ATOM SCATTERING

Authors
KRESIN VV SCHEIDEMANN A KNIGHT WD
Citation
Vv. Kresin et al., VAN-DER-WAALS INTERACTION OF FINITE METALLIC SYSTEMS - A STUDY OF CLUSTER-ATOM SCATTERING, Physical review. A, 49(4), 1994, pp. 2696-2701
Citations number
39
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
49
Issue
4
Year of publication
1994
Pages
2696 - 2701
Database
ISI
SICI code
1050-2947(1994)49:4<2696:VIOFMS>2.0.ZU;2-7
Abstract
Absolute integral cross sections for elastic collisions of neutral sod ium clusters Na(n) (n = 2-20) with sodium atoms have been measured and the van der Waals interaction constants determined. The center-of-mas s cross sections are very large (up to thousands of square angstroms), reflecting high cluster polarizabilities. It is found that the disper sion theory based on measured response parameters of alkali-metal clus ters tends to overestimate the interaction strength.