Observation of Interatomic Coulombic Decay in High Energy Electron - Ar Dimer Collision

摘要

The kinetic energy distributions (KER) of the fragment ions of doubly and qurdruply ionized argon dimers by 3000 eV electron impact are measured. For the dissociation of (Ar2)2+, the peak evidencing radiative charge transfer is observed. For the dissociation of (Ar2)4+, clear signatures of interatomic Coulombic decay and electron transfer mediated decay are observed in electron impact experiment for the first time.