Ion pair formation in the NeAr dimer irradiated by monochromatic soft X-rays
We investigated Ne+-Ar+ ion-pair formation which follows irradiation of the NeAr dimer by monochromatic soft X-rays. Using momentum-resolved electron-ion multicoincidence spectroscopy, we could unambiguously identify that the formation of the ion pair at photon energy of 200.5eV proceeds via interat...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
28 September 2016
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| In: |
Chemical physics
Year: 2017, Volume: 482, Pages: 178-184 |
| DOI: | 10.1016/j.chemphys.2016.09.032 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1016/j.chemphys.2016.09.032 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0301010416306000 
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| Author Notes: | T. Ouchi, V. Stumpf, T. Miteva, A.I. Kuleff, K. Gokhberg |
| Summary: | We investigated Ne+-Ar+ ion-pair formation which follows irradiation of the NeAr dimer by monochromatic soft X-rays. Using momentum-resolved electron-ion multicoincidence spectroscopy, we could unambiguously identify that the formation of the ion pair at photon energy of 200.5eV proceeds via interatomic Coulombic decay (ICD) of the Ne+(2s−1)Ar inner-valence ionized and NeAr+(3p−25d) ionization satellite states. Photoabsorption at higher photon energies of 268.2eV and 888.7eV leads to the emission of core electrons of Ar and Ne respectively, and to the subsequent local Auger decay process. We demonstrate that at these energies the ion pair formation originating in the doubly ionized Ar L-MM and Ne K-LL Auger final states proceeds mostly via radiative charge transfer and charge transfer driven by non-adiabatic coupling mechanisms. |
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| Item Description: | Gesehen am 24.04.2018 |
| Physical Description: | Online Resource |
| DOI: | 10.1016/j.chemphys.2016.09.032 |