Mode-Specific Vibrational Autodetachment Following Excitation of Electronic Resonances by Electrons and Photons

Anstöter, Cate S.; Mensa-Bonsu, Golda; Nag, Pamir; Ranković, Miloš; Kumar T. P., Ragesh; Boichenko, Anton N.; Bochenkova, Anastasia V.; Fedor, Juraj; Verlet, Jan R. R.

Abstract

Electronic resonances commonly decay via internal conversion to vibrationally hot anions and subsequent statistical electron emission. We observed vibrational structure in such an emission from the nitrobenzene anion, in both the 2D electron energy loss and 2D photoelectron spectroscopy of the neutral and anion, respectively. The emission peaks could be correlated with calculated nonadiabatic coupling elements for vibrational modes to the electronic continuum from a nonvalence dipole-bound state. This autodetachment mechanism via a dipole-bound state is likely to be a common feature in both electron and photoelectron spectroscopies.

Citation

Anstöter, C. S., Mensa-Bonsu, G., Nag, P., Ranković, M., Kumar T. P., R., Boichenko, A. N., …Verlet, J. R. (2020). Mode-Specific Vibrational Autodetachment Following Excitation of Electronic Resonances by Electrons and Photons. Physical Review Letters, 124(20), Article 203401. https://doi.org/10.1103/physrevlett.124.203401

• Journal Article Type: Article
• Acceptance Date: May 1, 2020
• Online Publication Date: May 19, 2020
• Publication Date: May 22, 2020
• Deposit Date: May 22, 2020
• Publicly Available Date: May 22, 2020
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 124
• Issue: 20
• Article Number: 203401
• DOI: https://doi.org/10.1103/physrevlett.124.203401
• Public URL: https://durham-repository.worktribe.com/output/1301650