We report the observation of the unusually weak decay of the N 1s --> pi* core-excited N-2 molecule to the (B) over tilde (2)Sigma(u)(+) final state of 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.

Piancastelli, M.n., Fink, R.f., Feifel, R., Bassler, M., Sorensen, S.l., Miron, C., et al. (2000). Bond-distance-dependent decay probability of the N 1s -> pi* core-excited state in N-2. JOURNAL OF PHYSICS. B, ATOMIC MOLECULAR AND OPTICAL PHYSICS, 33(9), 1819-1826 [10.1088/0953-4075/33/9/311].

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

PIANCASTELLI, MARIA NOVELLA;
2000-01-01

Abstract

We report the observation of the unusually weak decay of the N 1s --> pi* core-excited N-2 molecule to the (B) over tilde (2)Sigma(u)(+) final state of 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.
2000
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI
English
Con Impact Factor ISI
chemical bonds; computational methods; electron energy levels; molecular vibrations; photoemission; probability; spectroscopic analysis; auger spectroscopy; nitrogen
Piancastelli, M.n., Fink, R.f., Feifel, R., Bassler, M., Sorensen, S.l., Miron, C., et al. (2000). Bond-distance-dependent decay probability of the N 1s -> pi* core-excited state in N-2. JOURNAL OF PHYSICS. B, ATOMIC MOLECULAR AND OPTICAL PHYSICS, 33(9), 1819-1826 [10.1088/0953-4075/33/9/311].
Piancastelli, Mn; Fink, Rf; Feifel, R; Bassler, M; Sorensen, Sl; Miron, C; Wang, H; Hjelte, I; Bjorneholm, O; Ausmees, A; Svensson, S; Salek, P; Gel'M...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/6145
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