Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters
The role of interatomic and intermolecular energy and charge-transfer processes in weakly bound matter is currently lively debated due to emerging destructive low-energy electrons and radicals. Here, we discuss two mechanisms of single-photon two-site double ionization occurring competitively or sub...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2023-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.013055 |
| _version_ | 1797210607740518400 |
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| author | Andreas Hans Florian Trinter Philipp Schmidt Sebastian Eckart Sven Grundmann Gregor Hartmann Xaver Holzapfel Carolin Honisch Gregor Kastirke Max Kircher Niklas Melzer Christian Ozga Clemens Richter Jonas Rist Markus Schöffler Daniel Trabert Isabel Vela-Perez Johannes H. Viehmann Miriam Weller Reinhard Dörner Uwe Hergenhahn Arno Ehresmann André Knie Kirill Gokhberg Aryya Ghosh Till Jahnke |
| author_facet | Andreas Hans Florian Trinter Philipp Schmidt Sebastian Eckart Sven Grundmann Gregor Hartmann Xaver Holzapfel Carolin Honisch Gregor Kastirke Max Kircher Niklas Melzer Christian Ozga Clemens Richter Jonas Rist Markus Schöffler Daniel Trabert Isabel Vela-Perez Johannes H. Viehmann Miriam Weller Reinhard Dörner Uwe Hergenhahn Arno Ehresmann André Knie Kirill Gokhberg Aryya Ghosh Till Jahnke |
| author_sort | Andreas Hans |
| collection | DOAJ |
| description | The role of interatomic and intermolecular energy and charge-transfer processes in weakly bound matter is currently lively debated due to emerging destructive low-energy electrons and radicals. Here, we discuss two mechanisms of single-photon two-site double ionization occurring competitively or subsequently to resonant interatomic Coulombic decay (rICD) in inner-valence (2s→np) excited Ne dimers and clusters. The first mechanism is photoelectron-impact ionization which is, in general, not related to resonant excitation, but in the present case strongly enhanced and, thus, observable due to resonant excitation. Studying this mechanism at its energetic threshold enables addressing a subset of Ne dimers with selected bond lengths. The second mechanism is collisional ionization of energetic Rydberg atoms, which are produced by rICD in Ne clusters and may be ionized by collisions with neutrals on their way through the medium. Both mechanisms are identified by the coincident detection of charged products and, for the case of collisional ionization, confirmed by calculations. These mechanisms produce one more low-energy electron and ion than conventional rICD and, thus, should be considered in the discussion of the biochemical impact of photoinduced rICD processes. |
| first_indexed | 2024-04-24T10:13:17Z |
| format | Article |
| id | doaj.art-cb918bb688e94849a9d40edb6708dc34 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:13:17Z |
| publishDate | 2023-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-cb918bb688e94849a9d40edb6708dc342024-04-12T17:28:00ZengAmerican Physical SocietyPhysical Review Research2643-15642023-01-015101305510.1103/PhysRevResearch.5.013055Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clustersAndreas HansFlorian TrinterPhilipp SchmidtSebastian EckartSven GrundmannGregor HartmannXaver HolzapfelCarolin HonischGregor KastirkeMax KircherNiklas MelzerChristian OzgaClemens RichterJonas RistMarkus SchöfflerDaniel TrabertIsabel Vela-PerezJohannes H. ViehmannMiriam WellerReinhard DörnerUwe HergenhahnArno EhresmannAndré KnieKirill GokhbergAryya GhoshTill JahnkeThe role of interatomic and intermolecular energy and charge-transfer processes in weakly bound matter is currently lively debated due to emerging destructive low-energy electrons and radicals. Here, we discuss two mechanisms of single-photon two-site double ionization occurring competitively or subsequently to resonant interatomic Coulombic decay (rICD) in inner-valence (2s→np) excited Ne dimers and clusters. The first mechanism is photoelectron-impact ionization which is, in general, not related to resonant excitation, but in the present case strongly enhanced and, thus, observable due to resonant excitation. Studying this mechanism at its energetic threshold enables addressing a subset of Ne dimers with selected bond lengths. The second mechanism is collisional ionization of energetic Rydberg atoms, which are produced by rICD in Ne clusters and may be ionized by collisions with neutrals on their way through the medium. Both mechanisms are identified by the coincident detection of charged products and, for the case of collisional ionization, confirmed by calculations. These mechanisms produce one more low-energy electron and ion than conventional rICD and, thus, should be considered in the discussion of the biochemical impact of photoinduced rICD processes.http://doi.org/10.1103/PhysRevResearch.5.013055 |
| spellingShingle | Andreas Hans Florian Trinter Philipp Schmidt Sebastian Eckart Sven Grundmann Gregor Hartmann Xaver Holzapfel Carolin Honisch Gregor Kastirke Max Kircher Niklas Melzer Christian Ozga Clemens Richter Jonas Rist Markus Schöffler Daniel Trabert Isabel Vela-Perez Johannes H. Viehmann Miriam Weller Reinhard Dörner Uwe Hergenhahn Arno Ehresmann André Knie Kirill Gokhberg Aryya Ghosh Till Jahnke Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters Physical Review Research |
| title | Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters |
| title_full | Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters |
| title_fullStr | Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters |
| title_full_unstemmed | Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters |
| title_short | Mechanisms of one-photon two-site double ionization after resonant inner-valence excitation in Ne clusters |
| title_sort | mechanisms of one photon two site double ionization after resonant inner valence excitation in ne clusters |
| url | http://doi.org/10.1103/PhysRevResearch.5.013055 |
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