Intermolecular Coulombic Decay in Liquid Water

Intermolecular Coulombic Decay in Liquid Water

We report the first observation of intermolecular Coulombic decay (ICD) in liquid water following inner-valence ionization. By combining a monochromatized tabletop high-harmonic source with a liquid microjet, we record electron-electron coincidence spectra at two photon energies that identify the IC...

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Veröffentlicht in:Physical review letters 2022-04, Vol.128 (13), p.133001-133001, Article 133001
Hauptverfasser: Zhang, Pengju, Perry, Conaill, Luu, Tran Trung, Matselyukh, Danylo, Wörner, Hans Jakob
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container_end_page 133001
container_issue 13
container_start_page 133001
container_title Physical review letters
container_volume 128
creator Zhang, Pengju
Perry, Conaill
Luu, Tran Trung
Matselyukh, Danylo
Wörner, Hans Jakob
description We report the first observation of intermolecular Coulombic decay (ICD) in liquid water following inner-valence ionization. By combining a monochromatized tabletop high-harmonic source with a liquid microjet, we record electron-electron coincidence spectra at two photon energies that identify the ICD electrons, together with the photoelectrons originating from the 2a_{1} inner-valence band of liquid water. Our results confirm the importance of ICD as a source of low-energy electrons in bulk liquid water and provide quantitative results for modeling the velocity distribution of the slow electrons that are thought to dominate radiation damage in aqueous environments.
doi_str_mv 10.1103/PhysRevLett.128.133001
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title Intermolecular Coulombic Decay in Liquid Water
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