Observation of a collective two-electron molecular resonance

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 wavele...

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Bibliographic Details
Main Authors: J. Rist, M. Weller, M. Kircher, D. Trabert, N. Melzer, J. Siebert, I. Vela-Perez, M. Waitz, G. Kastirke, S. Eckart, S. Grundmann, M. S. Schöffler, R. Dörner, F. Trinter, T. Jahnke
Format: Article
Language:English
Published: American Physical Society 2023-12-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.5.043283
Description
Summary: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.
ISSN:2643-1564