Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 22: Nuclear and X-Ray Quantum Optics
Q 22.7: Talk
Tuesday, March 3, 2026, 12:45–13:00, P 11
Electron spectroscopy of the Mössbauer transition in 57Fe — •K Ravi1, E Månsson1, L Bocklage1,2, S Velten1, I Sergeev1, M Seitz1, S Rockenstein1, D Schmitt3, M Kovacev3,4, F Calegari1,2,5, R Röhlsberger1,6, and A Trabattoni1,3,4 — 1CFEL, Hamburg — 2CUI, Universität Hamburg — 3Leibniz University Hannover — 4Cluster of Excellence PhoenixD, Hannover — 5Department of Physics, Universität Hamburg — 6IOQ, FSU Jena
Electron dynamics govern how nuclei interact with their electronic environment. In 57Fe Mössbauer isotopes, internal-conversion electrons and Auger-Meitner emission offer a surface-sensitive alternative to fluorescence for probing electron-nuclear energy exchange. Using synchrotron excitation and time-of-flight detection at PETRA III, we resolve magnetic hyperfine splitting and nuclear inelastic spectra, establishing a nuclear-electronic spectroscopy of coupled nuclear, electronic, and phononic excitations.
Keywords: Mössbauer Effect; Synchrotron Radiation; Nuclear Excitation; Electron Spectroscopy; Synchrotron Radiation