Nonmonotonic behavior as a function of nuclear charge of the K-shell Auger and radiative rates and fluorescence yields along the 1s2s(2)2p(3) isoelectronic sequence

Hasoglu, M.F. and Nikolic, D. and Gorczyca, T.W. and Manson, S.T. and Chen, M.H. and Badnell, N.R. (2008) Nonmonotonic behavior as a function of nuclear charge of the K-shell Auger and radiative rates and fluorescence yields along the 1s2s(2)2p(3) isoelectronic sequence. Physical Review A, 78 (3). 032509-1-032509-6. ISSN 1050-2947 (http://dx.doi.org/10.1103/PhysRevA.78.032509)

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Abstract

Calculations using multiconfiguration Breit-Pauli and multiconfiguration Dirac-Fock methodologies have revealed that the radiative and Auger rates, and the associated fluorescence yields, of the six electron 1s2s(2)2p(3) K-shell vacancy isoelectronic sequence exhibit nonmonotonic behavior as a function of nuclear charge Z. This behavior is explained in terms of an accidental degeneracy, an avoided crossing of two nearly degenerate spin-orbit coupled levels. The results also demonstrate the importance of including both electron-electron correlation and spin-orbit effects even at low Z.

ORCID iDs

Hasoglu, M.F., Nikolic, D., Gorczyca, T.W., Manson, S.T., Chen, M.H. and Badnell, N.R. ORCID logoORCID: https://orcid.org/0000-0001-7418-7996;
  • Item type:Article
    ID code:19483
    Dates:
    Date
    Event
    September 2008
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:09 Jun 2010 10:39
    Last modified:11 Nov 2024 09:22
    URI:https://strathprints.strath.ac.uk/id/eprint/19483
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