Electron transfer mediated decay of alkali dimers attached to He nanodroplets
| Autor: | Robert Richter, M. Shcherbinin, Sivarama Krishnan, Aryya Ghosh, Thomas Pfeifer, Aaron Christopher LaForge, Marcel Mudrich, Ltaief Ben Ltaief, Kirill Gokhberg, Marco Bauer, Suddhasattwa Mandel |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Chemical Physics (physics.chem-ph)
Materials science Coulomb explosion General Physics and Astronomy FOS: Physical sciences Electron 010402 general chemistry Kinetic energy 01 natural sciences Potential energy Molecular physics Diatomic molecule 0104 chemical sciences Ion Electron transfer Ionization Physics - Chemical Physics 0103 physical sciences Physics::Atomic and Molecular Clusters Physics::Atomic Physics Physical and Theoretical Chemistry 010306 general physics |
| Zdroj: | Ben Ltaief, L, Shcherbinin, M, Mandal, S, Krishnan, S R, Richter, R, Pfeifer, T, Bauer, M, Ghosh, A, Mudrich, M, Gokhberg, K & LaForge, A C 2020, ' Electron transfer mediated decay of alkali dimers attached to He nanodroplets ', Physical Chemistry Chemical Physics, vol. 22, no. 16, pp. 8557-8564 . https://doi.org/10.1039/D0CP00256A Physical Chemistry Chemical Physics |
| Popis: | Alkali metal dimers attached to the surface of helium nanodroplets are found to be efficiently doubly ionized by electron transfer mediated decay (ETMD) when photoionizing the helium droplets. This process is evidenced by detecting in coincidence two energetic ions created by Coulomb explosion and one low-kinetic energy electron. The kinetic energy spectra of ions and electrons are reproduced by simple model calculations based on diatomic potential energy curves, and are in agreement withab initiocalculations for the He-Na 2and He-KRb systems. This work demonstrates that ETMD is an important decay channel in heterogeneous nanosystems exposed to ionizing radiation. |
| Databáze: | OpenAIRE |
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