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Wilhelm RA, Gruber E, Schwestka J, et al. Interatomic Coulombic Decay: The Mechanism for Rapid Deexcitation of Hollow Atoms. Phys Rev Lett. 2017;119(10):103401doi: 10.1103/PhysRevLett.119.103401.
Wilhelm, R. A., Gruber, E., Schwestka, J., Kozubek, R., Madeira, T. I., Marques, J. P., Kobus, J., Krasheninnikov, A. V., Schleberger, M., & Aumayr, F. (2017). Interatomic Coulombic Decay: The Mechanism for Rapid Deexcitation of Hollow Atoms. Physical review letters, 119(10), 103401. https://doi.org/10.1103/PhysRevLett.119.103401
Wilhelm, Richard A, et al. "Interatomic Coulombic Decay: The Mechanism for Rapid Deexcitation of Hollow Atoms." Physical review letters vol. 119,10 (2017): 103401. doi: https://doi.org/10.1103/PhysRevLett.119.103401
Wilhelm RA, Gruber E, Schwestka J, Kozubek R, Madeira TI, Marques JP, Kobus J, Krasheninnikov AV, Schleberger M, Aumayr F. Interatomic Coulombic Decay: The Mechanism for Rapid Deexcitation of Hollow Atoms. Phys Rev Lett. 2017 Sep 08;119(10):103401. doi: 10.1103/PhysRevLett.119.103401. Epub 2017 Sep 08. PMID: 28949190.
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Phys Rev Lett. 2017 Sep 08;119(10):103401. doi: 10.1103/PhysRevLett.119.103401. Epub 2017 Sep 08.

Interatomic Coulombic Decay: The Mechanism for Rapid Deexcitation of Hollow Atoms.

Physical review letters

Richard A Wilhelm, Elisabeth Gruber, Janine Schwestka, Roland Kozubek, Teresa I Madeira, José P Marques, Jacek Kobus, Arkady V Krasheninnikov, Marika Schleberger, Friedrich Aumayr

Affiliations

  1. TU Wien, Institute of Applied Physics, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria, EU.
  2. Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany, EU.
  3. University Duisburg-Essen, Faculty of Physics and CENIDE, Lotharstrasse 1, 47048 Duisburg, Germany, EU.
  4. BioISI-Biosystems & Integrative Sciences Institute, Faculdade de Ciéncias da Universidade de Lisboa, 1749-016 Lisbon, Portugal, EU.
  5. Nicolaus Copernicus University, Faculty of Physics, Astronomy and Informatics, Institute of Physics, Grudzi?dzka 5, 87-100 Toru?, Poland, EU.

PMID: 28949190 DOI: 10.1103/PhysRevLett.119.103401

Abstract

The impact of a highly charged ion onto a solid gives rise to charge exchange between the ion and target atoms, so that a slow ion gets neutralized in the vicinity of the surface. Using highly charged Ar and Xe ions and the surface-only material graphene as a target, we show that the neutralization and deexcitation of the ions proceeds on a sub-10 fs time scale. We further demonstrate that a multiple Interatomic Coulombic Decay (ICD) model can describe the observed ultrafast deexcitation. Other deexcitation mechanisms involving nonradiative decay and quasimolecular orbital formation during the impact are not important, as follows from the comparison of our experimental data with the results of first-principles calculations. Our method also enables the estimation of ICD rates directly.

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