Auger decay of 4d inner-shell holes in atomic Hg leading to triple ionization

J. Andersson, R. Beerwerth, A. Hult Roos, R. J. Squibb, R. Singh, S. Zagorodskikh, O. Talaee, D. Koulentianos, J. H. D. Eland, S. Fritzsche, and R. Feifel
Phys. Rev. A 96, 012505 – Published 5 July 2017

Abstract

Formation of triply ionized states upon the creation of 4d inner-shell holes in atomic Hg is investigated by using synchrotron radiation of 730 eV photon energy and a versatile multielectron coincidence detection technique in combination with multiconfiguration Dirac-Fock calculations. By carefully selecting Coster-Kronig electrons detected only in coincidence with a 4d photoelectron, the Coster-Kronig spectrum has been extracted and the corresponding branching ratios of the 4d hole have been determined. The results are found to differ from previously established experimental ratios based on electron impact ionization but to agree now better with theory. We also present an Auger cascade analysis of pathways leading to triply ionized states of atomic Hg upon removal of a 4d inner-shell electron.

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  • Received 21 April 2017

DOI:https://doi.org/10.1103/PhysRevA.96.012505

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

J. Andersson1, R. Beerwerth2,3, A. Hult Roos1, R. J. Squibb1, R. Singh1, S. Zagorodskikh4,1, O. Talaee1,5, D. Koulentianos1,6, J. H. D. Eland1,7, S. Fritzsche2,3, and R. Feifel1,*

  • 1Department of Physics, University of Gothenburg, Origovägen 6B, SE-412 58 Gothenburg, Sweden
  • 2Helmholtz-Institute Jena, D-07743 Jena, Germany
  • 3Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, D-07743 Jena, Germany
  • 4Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden
  • 5Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, FI-90014 University of Oulu, Finland
  • 6Sorbonne Universités, UPMC Univ Paris 6, UMR7614, Laboratoire de Chimie Physique-Matière et Rayonnement, F-75005 Paris, France
  • 7Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom

  • *raimund.feifel@physics.gu.se

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Vol. 96, Iss. 1 — July 2017

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