Cited by 98Laser-Matter Interactions and ApplicationsX-ray Spectroscopy and Fluorescence AnalysisAtomic and Molecular Physics

Core Ionization Initiates Subfemtosecond Charge Migration in the Valence Shell of Molecules

Kuleff, Alexander I., Kryzhevoi, Nikolai V., Pernpointner, Markus, Cederbaum, Lorenz S.·2016·Physical Review Letters

Abstract

After the ionization of a valence electron, the created hole can migrate ultrafast from one end of the molecule to another. Because of the advent of attosecond pulse techniques, the measuring and understanding of charge migration has become a central topic in attosecond science. Here, we pose the hitherto unconsidered question whether ionizing a core electron will also lead to charge migration. It is found that the created hole in the core stays put, but in response to this hole interesting electron dynamics takes place which can lead to intense charge migration in the valence shell. This migration is typically faster than that after the ionization of a valence electron and transpires on a shorter time scale than the natural decay of the core hole by the Auger process, making the subject very challenging to attosecond science.

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Crossref · 10.1103/physrevlett.117.093002

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33 of 33 references verified0 citation errors · 0 not checkable

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  • Few-fs transfer dynamics of a double valence hole created by core-shell ionization and Auger decay might be barely accessible with few-fs pulses at LCLS, while sub-fs charge migration is currently beyond reach.

    “while the few-fs transfer dynamics of a double valence hole [88] created by core-shell ionization and subsequent Auger decay might be barely accessible with the few-fs pulses available at the LCLS, sub-fs charge migration discussed in [81] is currently beyond reach.”

    From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [81]

  • Theoretical analysis predicts that charge transfer and charge migration processes happen on sub-femtosecond timescales.

    “Theoretical analysis predicts these processes happening on sub-femtosecond timescales [81].”

    From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [81]

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Authors
Kuleff, A. I., Kryzhevoi, N. V., Pernpointner, M., & Cederbaum, L. S.
Affiliations
Heidelberg University (DE)
Corresponding author
Kuleff, Alexander I.
Venue
Physical Review Letters
Published
2016-08-23
Volume
117
Issue
9
Pages
093002-093002
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2512865527
Cited by
98
References
33
Citations by year
2026: 1 · 2025: 9 · 2024: 5 · 2023: 7 · 2022: 8 · 2021: 11 · 2020: 10 · 2019: 17 · 2018: 12 · 2017: 16 · 2016: 2
FWCI
7.41
Type
journal article
Language
en
Open access
closed
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • Army Research Office (W911NF-14-1-0383)
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
core ionization, charge migration, core hole, valence shell, ultrafast electron dynamics, attosecond science, Auger decay, core-level photoionization

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