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Constant-atomic-final-state filtering of dissociative states in the core excitation in
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View: Figures


Image of FIG. 1.
FIG. 1.

The resonance region in the core excitation spectrum of obtained by quasitotal absorption (partial electron yield) technique.

Image of FIG. 2.
FIG. 2.

Resonant Auger spectra of molecular recorded at various photon energy values in the resonance region. The normal Auger spectrum recorded at a photon energy of is shown on top for sake of comparison. The spectrum marked “on resonance” is obtained at photon energy, corresponding to the maximum of feature 1 of the absorption curve reported in Fig. 1.

Image of FIG. 3.
FIG. 3.

Doppler-split Auger lines connected to different final ionic states deriving from Auger decay in the atomic fragment produced by ultrafast dissociation in the resonance region.

Image of FIG. 4.
FIG. 4.

The intensity of the Doppler-split Auger lines as a function of photon energy compared to the partial electron yield spectrum of Fig. 1 (see Fig. 3 for line assignment).

Image of FIG. 5.
FIG. 5.

Diabatic potential curves for the excitation to the dissociative orbital and to the Rydberg orbitals , , and . The labels Q (quartet) and D (doublet) correspond to the spin-coupling character of the “ionic” state as explained in the text.

Image of FIG. 6.
FIG. 6.

Experimentally determined Doppler splitting and kinetic-energy release derived from it using Eq. (2) as a function of photon energy.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Constant-atomic-final-state filtering of dissociative states in the O1s→σ* core excitation in O2