Charge Transfer in Cluster-Atom Collisions Studied with Non-Adiabatic Quantum Molecular Dynamics

Details Charge Transfer in Cluster-Atom Collisions Studied with Non-Adiabatic Quantum Molecular Dynamics Charge Transfer in Cluster-Atom Collisions Studied with Non-Adiabatic Quantum Molecular Dynamics

1997-12-04

arxiv.org/abs/physics/9712008v1

Physics

Atomic and Molecular Clusters

RevTeX (4 pages, 4 figures included with epsfig)

Scientific paper

Charge transfer in collisions of Na_n^+ cluster ions with Cs atoms is investigated theoretically in the microscopic framework of non-adiabatic quantum molecular dynamics. The competing reaction channels and related processes affecting the charge transfer (electronic excitations, fragmentation, temperature) are described. Absolute charge transfer cross sections for Na_n^+(2.7 keV) + Cs --> Na_n + Cs^+ have been calculated in the size range 4 <= n <= 11 reproducing the size dependence of the experimental cross sections. The energy dependence of the cross section is predicted for n=4,7,9. An exotic charge transfer channel producing Cs^- is found to have a finite probability.

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