Interference between One- and Two-Electron Channels in Resonant Inelastic X-Ray Scattering
Interference between scattering channels is observed in resonant inelastic x-ray scattering (RIXS) at the Ne K threshold. Final states with |2p^{-1}np⟩ as the main configuration are populated via |1s^{-1}n^{'}p⟩ resonances, where large-amplitude one-electron (n^{'}=n) channels interfere with small-amplitude two-electron (n^{'}≠n) channels. The interference is manifested in an asymmetric line profile where the two-electron resonance occurs in the tail region of the one-electron resonance. In RIXS, this slowly varying tail plays the role of the continuum for the Fano effect. The asymmetric profile is well modeled by means of a single asymmetry parameter, determined by the amplitudes of the scattering channels and the energy separation between the resonances.
Authors
- Marcus Agåker (ORCID: https://orcid.org/0000-0001-6501-5324)
- Jian Wang (ORCID: https://orcid.org/0000-0003-0944-6052)
- Johan Söderström (ORCID: https://orcid.org/0000-0002-9647-0394)
- Victor Kimberg (ORCID: https://orcid.org/0000-0003-1269-8760)
- Zhong Yin (ORCID: https://orcid.org/0000-0001-5594-9879)
- Anirudha Ghosh (ORCID: https://orcid.org/0000-0002-8346-9511)
- Takashi Tokushima (ORCID: https://orcid.org/0000-0003-2586-0712)
- S. Fritzsche (ORCID: https://orcid.org/0000-0003-3101-2824)
- Th. Baumann (ORCID: https://orcid.org/0009-0004-9612-221X)
- Conny Såthe (ORCID: https://orcid.org/0000-0001-7799-8575)
- Manuel Harder (ORCID: https://orcid.org/0009-0006-4069-7748)
- Ji‐Cai Liu (ORCID: https://orcid.org/0000-0002-4341-4823)
- Jan‐Erik Rubensson (ORCID: https://orcid.org/0000-0003-1467-8114)
- Olle Björneholm (ORCID: https://orcid.org/0000-0002-7307-5404)
- J. Nordgren (ORCID: https://orcid.org/0000-0003-1153-7498)
- Faris Gel’mukhanov (ORCID: https://orcid.org/0000-0002-8272-7670)
- Michael Meyer (ORCID: https://orcid.org/0000-0002-1444-6770)
- Andreas Pantelis Frey Koudouridis
- Moritz Grunwald-Delitz (ORCID: https://orcid.org/0009-0009-2595-7726)
Institutions
- Uppsala University (SE)
- Helmholtz Institute Jena (DE)
- North China Electric Power University (CN)
- GSI Helmholtz Centre for Heavy Ion Research (DE)
- Lund University (SE)
- Tohoku University (JP)
- MAX IV Laboratory (SE)
- Friedrich Schiller University Jena (DE)
- KTH Royal Institute of Technology (SE)
- European X-Ray Free-Electron Laser (DE)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-10-27
- DOI
- https://doi.org/10.1103/c5mk-trlz
- Primary Topic
- Crystallography and Radiation Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Swedish Foundation for International Cooperation in Research and Higher Education
- National Natural Science Foundation of China
- VINNOVA
- Svenska Forskningsrådet Formas
- Bundesministerium für Bildung und Forschung
- Carl Tryggers Stiftelse för Vetenskaplig Forskning
- Vetenskapsrådet