Autoionization mediated by electron transfer |
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Authors: | Förstel Marko Mucke Melanie Arion Tiberiu Bradshaw Alex M Hergenhahn Uwe |
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Institution: | Max-Planck-Institut für Plasmaphysik, EURATOM Association, Boltzmannstr 2, 85748 Garching, Germany. |
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Abstract: | Electron-electron coincidence spectra of Ar-Kr clusters after photoionization have been measured. An electron with the kinetic energy range from 0 to approximately 1 eV is found in coincidence with the Ar 3s cluster photoelectron. The low kinetic energy electron can be attributed to an Ar + Kr+ + Kr+ final state which forms after electron transfer mediated decay. This autoionization mechanism results from a concerted transition involving three different atoms in a van der Waals cluster; it was predicted theoretically, but hitherto not observed. |
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