Theoretical study of the electron structure of superheavy elements with an open 6d shell: Sg, Bh, Hs, and Mt

B. G. C. Lackenby, V. A. Dzuba, and V. V. Flambaum
Phys. Rev. A 99, 042509 – Published 18 April 2019

Abstract

We use recently developed efficient versions of the configuration interaction method to perform ab initio calculations of the spectra of superheavy elements seaborgium (Sg, Z=106), bohrium (Bh, Z=107), hassium (Hs, Z=108), and meitnerium (Mt, Z=109). We calculate energy levels, ionization potentials, isotope shifts, and electric dipole transition amplitudes. Comparison with lighter analogs reveals significant differences caused by strong relativistic effects in superheavy elements. Very large spin-orbit interaction distinguishes subshells containing orbitals with a definite total electron angular momentum j. This effect replaces Hund's rule holding for lighter elements.

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  • Received 18 February 2019
  • Revised 14 March 2019

DOI:https://doi.org/10.1103/PhysRevA.99.042509

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

B. G. C. Lackenby1, V. A. Dzuba1, and V. V. Flambaum1,2

  • 1School of Physics, University of New South Wales, Sydney 2052, Australia
  • 2Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany

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Issue

Vol. 99, Iss. 4 — April 2019

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