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The multielectron c...
The multielectron character of the S 2p → 4eg shape resonance in the SF6 molecule studied via detection of soft X-ray emission and neutral high-Rydberg fragments
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- Kivimäki, A. (författare)
- CNR Istituto Officina dei Materiali (IOM)
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- Coreno, M. (författare)
- CNR Istituto Officina dei Materiali (IOM)
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- Miotti, P. (författare)
- CNR Istituto per le Tecnologie Applicate ai Beni Culturali (CNR-ITABC)
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- Frassetto, F. (författare)
- CNR Istituto per le Tecnologie Applicate ai Beni Culturali (CNR-ITABC)
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- Poletto, L. (författare)
- CNR Istituto per le Tecnologie Applicate ai Beni Culturali (CNR-ITABC)
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- Stråhlman, C. (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- De Simone, M. (författare)
- CNR Istituto Officina dei Materiali (IOM)
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- Richter, R. (författare)
- Elettra Sincrotrone Trieste
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(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska 8 s.
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Ingår i: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048. ; 209, s. 26-33
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We have studied the nature of the S 2p → 4eg shape resonance in the SF6 molecule by performing two different experiments. Soft X-ray emission spectra measured at the 4eg shape resonance reveal features that do not originate from the S 2p-1 states. One of the features can be assigned to the 6a1g → S 2p transition. The 6a1g orbital, which is empty in the molecular ground state, can be populated either in core-valence double excitations or in S 2p shake-up transitions. Both these channels are considered. We have also studied the fragmentation of SF6 molecule after the decay of the S 2p core-hole states by observing neutral fragments in high-Rydberg states, where an electron occupies an orbital with n ≥ 20 (n is the principal quantum number). Such neutral fragments become, in relative terms, more abundant at the S 2p → 4eg shape resonance with respect to the S 2p → 2t2g shape resonance, which is a pure one-electron phenomenon.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- Double excitations
- High-Rydberg states
- SF
- Shake-up transitions
- Shape resonance
- Soft X-ray emission
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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