Bond-distance-dependent decay probability of the N 1s -> pi* core-excited state in N-2

Citation
Mn. Piancastelli et al., Bond-distance-dependent decay probability of the N 1s -> pi* core-excited state in N-2, J PHYS B, 33(9), 2000, pp. 1819-1826
Citations number
18
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN journal
09534075 → ACNP
Volume
33
Issue
9
Year of publication
2000
Pages
1819 - 1826
Database
ISI
SICI code
0953-4075(20000514)33:9<1819:BDPOTN>2.0.ZU;2-I
Abstract
We report the observation of the unusually weak decay of the N 1s --> pi* c ore-excited N-2 molecule to the (B) over tilde (2)Sigma(u)(+) final state o f N-2(+), which is only detectable in an experiment with high sensitivity. The resonant Auger spectra exhibit an unexpected dependence on the selected vibrational level of the intermediate state. Theoretical calculations show that the interference between direct and resonant photoemission as well as a strong geometry dependence of the decay probability on the bond distance give rise to the observed features.