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Rearrangement of electron shells and interchannel interaction in the K photoabsorption of Ne

  • Nikolay M. Novikovskiy
  • Dmitriy V. Rezvan
  • Nikita M. Ivanov
  • Ivan D. Petrov
  • Boris M. Lagutin
  • Andre Knie
  • Arno Ehresmann
  • Philipp V. Demekhin
  • Victor L. SukhorukovEmail author
Regular Article
Part of the following topical collections:
  1. Topical Issue: Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces (2018)

Abstract

A detailed theoretical analysis of the 1s photoionization of neon is presented. It is found that the most significant many-electron correlation in computing photoionization of inner shells is the rearrangement of the outer shells caused by the inner vacancy. Further noticeable effects are: (i) the polarization of the ion core by the outgoing photoelectron and (ii) the coherent effect of double excitation/ionization. The core polarization increases the photoionization cross section by about 10% at the 1s threshold, and the coherent excitation results in further increases by about 5%. Incoherent excitation of the satellite channel leads to an additional 10% increase in the photoabsorption cross section in the double-ionization threshold region.

Graphical abstract

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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Nikolay M. Novikovskiy
    • 1
  • Dmitriy V. Rezvan
    • 1
  • Nikita M. Ivanov
    • 1
  • Ivan D. Petrov
    • 2
  • Boris M. Lagutin
    • 2
  • Andre Knie
    • 3
  • Arno Ehresmann
    • 3
  • Philipp V. Demekhin
    • 3
  • Victor L. Sukhorukov
    • 1
    • 3
    Email author
  1. 1.Institute of Physics, Southern Federal UniversityRostov-on-DonRussia
  2. 2.Rostov State Transport UniversityRostov-on-DonRussia
  3. 3.Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of KasselKasselGermany

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