Site- and Energy-Selective Low-Energy Electron Emission by X-Rays in Aqueous Phase
Chemical Physics
2024-08-23 v1 Atomic and Molecular Clusters
Abstract
Low-energy-electron emission from resonant Auger final states via intermolecular Coulombic decay (RA-ICD) has been previously described as a promising scenario for controlling radiation damage for medical purposes, but has so far only been observed in prototypical atomic and molecular van der Waals dimers and clusters. Here, we report the experimental observation of RA-ICD in aqueous solution. We show that for solvated Ca ions, the emission can be very efficiently controlled by tuning the photon energy of exciting X-rays to inner-shell resonances of the ions. Our results provide the next step from proving RA-ICD in relatively simple prototype systems to understanding the relevance and potential applications of ICD in real-life scenarios.
Keywords
Cite
@article{arxiv.2408.12435,
title = {Site- and Energy-Selective Low-Energy Electron Emission by X-Rays in Aqueous Phase},
author = {Dana Bloß and Rémi Dupuy and Florian Trinter and Isaak Unger and Noelle Walsh and Gunnar Öhrwall and Niklas Golchert and Gabriel Klassen and Adrian Krone and Yusaku Terao and Johannes H. Viehmann and Lasse Wülfing and Clemens Richter and Tillmann Buttersack and Lorenz S. Cederbaum and Uwe Hergenhahn and Olle Björneholm and Arno Ehresmann and Andreas Hans},
journal= {arXiv preprint arXiv:2408.12435},
year = {2024}
}