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Charge transfer to ground-state ions produces free electrons

Author

Listed:
  • D. You

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • H. Fukuzawa

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • Y. Sakakibara

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • T. Takanashi

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • Y. Ito

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • G. G. Maliyar

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • K. Motomura

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

  • K. Nagaya

    (RIKEN SPring-8 Center
    Kyoto University)

  • T. Nishiyama

    (RIKEN SPring-8 Center
    Kyoto University)

  • K. Asa

    (RIKEN SPring-8 Center
    Kyoto University)

  • Y. Sato

    (RIKEN SPring-8 Center
    Kyoto University)

  • N. Saito

    (RIKEN SPring-8 Center
    National Metrology Institute of Japan, AIST)

  • M. Oura

    (RIKEN SPring-8 Center)

  • M. Schöffler

    (RIKEN SPring-8 Center
    Institute for Nuclear Physics, Johann Wolfgang Goethe University Frankfurt)

  • G. Kastirke

    (Institute for Nuclear Physics, Johann Wolfgang Goethe University Frankfurt)

  • U. Hergenhahn

    (Leibniz Institute of Surface Modification
    Max-Planck-Institute for Plasma Physics)

  • V. Stumpf

    (Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg)

  • K. Gokhberg

    (Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg)

  • A. I. Kuleff

    (Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg)

  • L. S. Cederbaum

    (Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg)

  • K Ueda

    (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
    RIKEN SPring-8 Center)

Abstract

Inner-shell ionization of an isolated atom typically leads to Auger decay. In an environment, for example, a liquid or a van der Waals bonded system, this process will be modified, and becomes part of a complex cascade of relaxation steps. Understanding these steps is important, as they determine the production of slow electrons and singly charged radicals, the most abundant products in radiation chemistry. In this communication, we present experimental evidence for a so-far unobserved, but potentially very important step in such relaxation cascades: Multiply charged ionic states after Auger decay may partially be neutralized by electron transfer, simultaneously evoking the creation of a low-energy free electron (electron transfer-mediated decay). This process is effective even after Auger decay into the dicationic ground state. In our experiment, we observe the decay of Ne2+ produced after Ne 1s photoionization in Ne–Kr mixed clusters.

Suggested Citation

  • D. You & H. Fukuzawa & Y. Sakakibara & T. Takanashi & Y. Ito & G. G. Maliyar & K. Motomura & K. Nagaya & T. Nishiyama & K. Asa & Y. Sato & N. Saito & M. Oura & M. Schöffler & G. Kastirke & U. Hergenha, 2017. "Charge transfer to ground-state ions produces free electrons," Nature Communications, Nature, vol. 8(1), pages 1-6, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14277
    DOI: 10.1038/ncomms14277
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