Subfemtosecond Control of Molecular Fragmentation by Hard X-Ray Photons
Open accessAbstract
Tuning hard x-ray excitation energy along Cl 1s→σ^{*} resonance in gaseous HCl allows manipulating molecular fragmentation in the course of the induced multistep ultrafast dissociation. The observations are supported by theoretical modeling, which shows a strong interplay between the topology of the potential energy curves, involved in the Auger cascades, and the so-called core-hole clock, which determines the time spent by the system in the very first step. The asymmetric profile of the fragmentation ratios reflects different dynamics of nuclear wave packets dependent on the photon energy.
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Because of the cascade Auger effect, the ultrafast nuclear motion occurring in the first intermediate state is amplified through the different dissociative intermediate states and leads to the ultrafast dissociation, with the Auger electron emitted by the fragment and not by the molecule.
“Because of the cascade Auger effect, the ultrafast nuclear motion occurring in the first intermediate state is amplified through the different dissociative intermediate states and leads to the ultrafast dissociation as illustrated in figure 6: the Auger electron is emitted by the fragment and not by the molecule [24,25].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [25]
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References 32 · Cited by 35
- Authors
- Travnikova, O., Sisourat, N., Marchenko, T., Goldsztejn, G., Guillemin, R., Journel, L., Céolin, D., Ismail, I., Lago, A. F., Püttner, R., Piancastelli, M. N., & Simon, M.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Synchrotron SOLEIL (FR)
- Universidade Federal do ABC (BR)
- Freie Universität Berlin (DE)
- Uppsala University (SE)
- ORCID
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2017-05-26
- Volume
- 118
- Issue
- 21
- Pages
- 213001-213001
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2619307219
- Cited by
- 35
- References
- 32
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 6 · 2023: 1 · 2022: 5 · 2021: 2 · 2020: 6 · 2019: 4 · 2018: 6 · 2017: 2
- FWCI
- 2.42
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion, other-oa)
- Refubium (Universitätsbibliothek der Freien Universität Berlin) (submittedVersion)
- Universitätsbibliothek der FU Berlin Hochschulschriftenstelle u. Dokumentenserver
- Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Labex Plas@Par
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Physics and Astronomy › Radiation › X-ray Spectroscopy and Fluorescence Analysis
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Molecular Physics
- Keywords
- molecular fragmentation, hydrogen chloride, Auger cascade, potential energy curves, nuclear wave packets, ultrafast dissociation
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