Abstract
Using momentum-resolved electron-ion multicoincidence spectroscopy, we have investigated interatomic Coulombic decay (ICD) in the heteronuclear NeAr dimer following Ne Auger decay. The measured intensity ratio for the three ICD transitions Ne()Ar to Ne()–Ar(), Ne()Ar to Ne()-Ar(), and Ne()Ar to Ne()-Ar() reasonably agree with predictions. The kinetic energy release distribution for the fragmentation to Ne()-Ar() after the ICD transition from singlet Ne()Ar state, which is a mirror image of the kinetic energy distribution of the emitted ICD electrons, suggests that the corresponding ICD rate is roughly two times lower than predicted by ab initio calculations.
- Received 22 March 2011
DOI:https://doi.org/10.1103/PhysRevA.83.053415
©2011 American Physical Society