Journal article
Femtosecond neutralization dynamics in cluster-solid surface collisions



Publication Details
Authors:
Wrenger, B.; Meiwes-Broer, K.; Speer, O.; Garcia, M.
Publisher:
AMERICAN PHYSICAL SOC
Publication year:
1997
Journal:
Physical Review Letters
Pages range:
2562-2565
Journal acronym:
PRL
Volume number:
79
Start page:
2562
End page:
2565
Number of pages:
4
ISSN:
0031-9007
eISSN:
1079-7114

Abstract
Experimental results for the relative electron emission yields gamma(N) of charged clusters colliding at low energies with different surfaces are presented, For fixed collision energy a remarkable cluster size dependence of gamma(N) is obtained using highly oriented pyrolytic graphite as target. By studying theoretically the collision process within a microscopic model we find that the nonadiabatic survival probability of the charged clusters shows the same behavior as gamma(N). Thus, gamma(N) reflects the femtosecond neutralization dynamics during the collision, which may result in damped Stuckelberg oscillations for targets with narrow densities of states.


Authors/Editors

Last updated on 2019-25-07 at 16:01