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Brand, André ; Kaiser, Benjamin ; Vagov, Alexei ; Axt, Vollrath Martin ; Pietsch, U.:
Model study on how an ordered grouping of atoms affects their inner-shell photoionization.
In: Physical Review A.
Bd. 92
(2015)
Heft 3
.
- 033424.
ISSN 1094-1622
DOI: https://doi.org/10.1103/PhysRevA.92.033424
Abstract
We show that the photoionization dynamics from the innermost shell of atoms changes significantly when instead of single atoms an ordered group of atoms or a crystal is considered. We find that the electronic current away from a given atom induced by pulsed photoionization is strongly suppressed in ordered groups of atoms although the overlap of the ground-state orbitals of neighboring atoms is negligible. The effect occurs even when the electron-electron interaction is disregarded in our model and thus impact ionization as well as the trapping due to the charging of the environment cannot be the cause of the suppression. Even when a reflectionless potential is used for the modeling of the atomic potential, the suppression is still profound. We interpret this localization of photoionized electrons as appearing due to quantum interference between the partial electron wave packets emitted from different atoms.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | photoionization; ultrafast dynamics; high intensities; xuv; soft-x-ray; electron-electron correlations; free-electron laser; coherent regime; Atomic and molecular physics; Accelerators; beams and electromagnetism; Photoionization of atoms; molecules and crystals |
| Institutionen der Universität: | Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Theoretische Physik III > Lehrstuhl Theoretische Physik III - Univ.-Prof. Dr. Martin Axt Fakultäten Fakultäten > Fakultät für Mathematik, Physik und Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Theoretische Physik III |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Eingestellt am: | 03 Nov 2017 09:24 |
| Letzte Änderung: | 03 Aug 2023 11:41 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/40269 |