Observation of a collective two-electron molecular resonance

Rist, J.; Weller, M.; Kircher, M.; Trabert, D.; Melzer, N.; Siebert, J.; Vela-Perez, I.; Waitz, M.; Kastirke, G.; Eckart, S.; Grundmann, S.; Schöffler, M. S.; Dörner, R.; Trinter, Florian; Jahnke, T.

doi:10.1103/PhysRevResearch.5.043283

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Observation of a collective two-electron molecular resonance

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Trinter, Florian
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Rist, J., Weller, M., Kircher, M., Trabert, D., Melzer, N., Siebert, J., et al. (2023). Observation of a collective two-electron molecular resonance. Physical Review Research, 5(4): 043283. doi:10.1103/PhysRevResearch.5.043283.

Cite as: https://hdl.handle.net/21.11116/0000-000E-1673-8

Abstract

Unbound electrons can experience resonant scattering and transient trapping in a molecular potential. In molecular photoemission, these shape resonances manifest as peaks in the cross section with a width of several electron volts. They depend on the details of the molecular potential and the wavelength of the photoelectron. We report experimental results on photo double-ionization which show the phenomenon of a collective two-electron resonance which occurs when the de Broglie wavelength of the dielectron quasiparticle is similar to that of a single electron exhibiting a single-electron shape resonance.