Aufsatz in einer Fachzeitschrift
Femtosecond neutralization dynamics in cluster-solid surface collisions
Details zur Publikation
Autor(inn)en: | Wrenger, B.; Meiwes-Broer, K.; Speer, O.; Garcia, M. |
Verlag: | AMERICAN PHYSICAL SOC |
Publikationsjahr: | 1997 |
Zeitschrift: | Physical Review Letters |
Seitenbereich: | 2562-2565 |
Abkürzung der Fachzeitschrift: | PRL |
Jahrgang/Band : | 79 |
Erste Seite: | 2562 |
Letzte Seite: | 2565 |
Seitenumfang: | 4 |
ISSN: | 0031-9007 |
eISSN: | 1079-7114 |
Zusammenfassung, 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.
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.
