Interatomic relaxation processes induced in neon dimers by electron-impact ionization

• Verfasst von: Yan, Sheldon [VerfasserIn]
• Verfasst von: Stumpf, Vasili [VerfasserIn]
• Verfasst von: Gokhberg, Kirill [VerfasserIn]
• Titel: Interatomic relaxation processes induced in neon dimers by electron-impact ionization
• Verf.angabe: S. Yan, P. Zhang, V. Stumpf, K. Gokhberg, X.C. Zhang, S. Xu, B. Li, L.L. Shen, X.L. Zhu, W.T. Feng, S.F. Zhang, D.M. Zhao, and X. Ma
• E-Jahr: 2018
• Jahr: 19 January 2018
• Umfang: 5 S.
• Fussnoten: Gesehen am 23.04.2020
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2018
• Band/Heft Quelle: 97(2018) Artikel-Nummer 010701, 5 Seiten
• ISSN Quelle: 2469-9934
• DOI: doi:10.1103/PhysRevA.97.010701
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1695816110

Abstract

We report an experimental observation of the interatomic Coulombic decay (ICD) and radiative charge-transfer (RCT) processes in a Ne dimer (e,2e) following a 380-eV electron impact. By detecting the Ne+−Ne+ cation pair and one of the emitted electrons in coincidence, the fingerprint of the ICD process initiated by the inner-valence ionization of Ne is obtained. Furthermore, the experimental results and ab initio calculations together unambiguously confirm the occurrence of the RCT process, and we show that most of the low-energy electrons produced in ionization of the Ne dimers are due to the ICD, which strongly suggests the importance of the ICD in causing radiation damage in a biological medium.