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, ), bohrium (Bh, ), hassium (Hs, ), and meitnerium (Mt, ). 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 . This effect replaces Hund's rule holding for lighter elements.
- Received 18 February 2019
- Revised 14 March 2019
DOI:https://doi.org/10.1103/PhysRevA.99.042509
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