Ionization potentials and polarizabilities of superheavy elements from Db to Cn ($Z$=105 to 112)

TL;DR

This paper calculates ionization potentials and polarizabilities of superheavy elements (Z=105-112) using relativistic methods, providing data crucial for understanding their electronic properties.

Contribution

It introduces a semi-empirical approach to account for electron correlations in superheavy elements, validated against lighter atoms.

Findings

Calculated ionization potentials and polarizabilities for superheavy elements.

The semi-empirical method accurately reproduces known properties of lighter atoms.

Provides data useful for future experimental and theoretical studies.

Abstract

Relativistic Hartree-Fock and random phase approximation methods for open shells are used to calculate ionization potentials and static scalar polarizabilities of eight superheavy elements with open $6d$-shell, which include Db, Sg, Bh, Hs, Mt, Ds, Rg and Cn ($Z$=105 to 112). Inter-electron correlations are taken into account with the use of the semi-empirical polarization potential. Its parameters are chosen to fit the known ionization potentials of lighter atoms. Calculations for lighter atoms are also used to illustrate the accuracy of the approach.