Charge Transfer Dynamics in Atom-Metal Surface Collisions

Charge transfer and fragmentation in cluster–atom collisions

Charge transfer and fragmentation in collisions of sodium cluster ions with caesium atoms have been investigated theoretically within a microscopic framework called Non-adiabatic Quantum Molecular Dynamics. To illustrate the complexity of non-adiabatic cluster collisions, in particular the interplay between charge transfer and fragmentation, Na4 (2.7 keV) + Cs collisions are studied in detail w...

Dynamics of Ionization and Charge Transfer Reactions in fast Heavy-Ion Atom Collisions

K.U. Kühnel, D. Fischer, R. Moshammer, S. Hagmann, T. Ferger, M. Gudmundsson, M. Schäfer, N. Nofal, C. Dimopoulou, M.Steck, H. Bräuning, C. Brandau, C. Kozhuharov, Th. Stöhlker, M. Schöffler, T. Zouros, G. Lanzano, E. de Filippo, H. Rothard and J.Ullrich Max-Planck-Institut für Kernphysik, Heidelberg, Germany; GSI, Darmstadt, Germany, Stockholm University, Sweden, GANIL. Caen, France, IKF, Univ...

Quasiresonances in atom-surface collisions

The only global autonomous system in which quasiresonant processes have been previously described is the seminal example of one atom colliding with a diatom molecule. In this work we describe classical quasiresonances in a different context, the grazing angle atomsurface collisions. While in the first system the actions related to the process correspond to the internal vibro-rotational degrees ...

Tuning Charge Transfer in Ion-Surface Collisions at Hyperthermal Energies.

Charge exchange in ion-surface collisions may be influenced by surface adsorbates to alter the charge state of the scattered projectiles. We show here that the positive-ion yield, observed during ion scattering on metal surfaces at low incident energies, is greatly enhanced by adsorbing electronegative species onto the surface. Specifically, when beams of N(+) and O(+) ions are scattered off of...

Dynamics of antimatter-atom collisions.