KINETIC-ENERGY DISTRIBUTIONS OF AR+ IONS PHOTODESORBED FROM ARGON MULTILAYERS

Authors
DUJARDIN G HELLNER L PHILIPPE L BESNARDRAMAGE MJ CIRKEL P
Citation
G. Dujardin et al., KINETIC-ENERGY DISTRIBUTIONS OF AR+ IONS PHOTODESORBED FROM ARGON MULTILAYERS, Physical review. B, Condensed matter, 48(19), 1993, pp. 14529-14533
Citations number
23
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
19
Year of publication
1993
Pages
14529 - 14533
Database
ISI
SICI code
0163-1829(1993)48:19<14529:KDOAIP>2.0.ZU;2-1
Abstract
Kinetic energies of Ar+ ions desorbed by double photoionization at 100 eV from argon layers (from 2 to 20 monolayers) condensed on platinum are measured and compared with predicted values. Unexpected low kineti c energies are explained by a relaxed Coulomb repulsion mechanism. The weakness of the high-kinetic-energy ion signal is considered to be du e to the noncrossing of the bound and repulsive potential-energy curve s involved in the desorption model.