Mechanisms of spontaneous two-electron emission from core-excited states of molecular CO.
We demonstrate that the observation of slow electrons emitted in the decay of molecular core-excited states can be a sensitive probe of the double Auger processes, and that in combination with electron-electron coincidence spectroscopy, it can provide clear insight into the mechanisms involved. The present study identifies all cascade Auger paths from the C1s-to-Rydberg states in CO to final states of CO2+. One pathway includes the first directly identified case of molecular level-to-level autoionization of a cation and shows remarkable selectivity for a specific final state.
Kaneyasu
T
T
UVSOR Facility, Institute for Molecular Science, Okazaki 444-8585, Japan.
Hikosaka
Y
Y
Lablanquie
P
P
Penent
F
F
Andric
L
L
Gamblin
G
G
Eland
J H D
JH
Tamenori
Y
Y
Matsushita
T
T
Shigemasa
E
E