Quantum size effect in the electron exchange between aH−ion and a thin metal disk

Abstract

The resonant charge transfer (RCT) between a hydrogen anion and a thin aluminum disk is investigated by means of the wave-packet propagation method that does not exploit the perturbation theory. The RCT on a thin metal disk is found to exhibit quantum size effects due to the finite size of the disk. Survival amplitude of ion state has been calculated as a function of the distance to the ion-surface in a normal collision. It is shown that depending on the projectile velocity, the ion can interact with disk as if with bulk metal, thin film or nano-structure with the energy quantized by polar and normal coordinates.