Electron structure of superheavy elements Uut, Fl and Uup ($Z$=113 to 115)

TL;DR

This paper employs advanced atomic calculation methods to accurately determine electronic properties of superheavy elements Uut, Fl, and Uup, providing insights into relativistic effects and correlations.

Contribution

The study introduces a combined linearized coupled cluster and configuration interaction method for superheavy elements, validated against lighter analogs.

Findings

Calculated ionisation potentials and excitation energies

Analyzed relativistic effects and electron correlations

Compared results with previous theoretical calculations

Abstract

We use recently developed method of accurate atomic calculations which combines linearized single-double coupled cluster method with the configuration interaction technique to calculate ionisation potentials, excitation energies, static polarizabilities and valence electron densities for superheavy elements Uut, Fl and Uup ($Z$=113 to 115) and their ions. The accuracy of the calculations is controlled by comparing similar calculations for lighter analogs of the superheavy elements, Tl, Pb and Bi with experiment. The role of relativistic effects and correlations is discussed and comparison with earlier calculations is presented.