A strong alternation of Auger electron angular distributions is observed for the second-step Auger emission of Ar following 2p3/2→4s and 2p1/2→4s excitation. This effect, which gives rise not only to anisotropy suppression but also to the strong enhancement, is shown to originate from a coherent population of the Auger initial state due to the short decay time of the second-step Auger transition, the so-called lifetime interference effect.
|Journal||Journal of Physics B: Atomic, Molecular and Optical Physics|
|Publication status||Published - 1999 Jul 14|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics