Abstract
The dipole polarizability tensor components of the tetravalent actinide ions ${\mathrm{Th}}^{4+}$, ${\mathrm{Pa}}^{4+}$, and ${\mathrm{U}}^{4+}$ are computed using the numerical finite-field technique. Four-component correlated calculations have been performed to serve as a reference for establishing the accuracy of two- and one-component relativistic methods. A good agreement within all methods is achieved provided that extended basis sets are used to reach the complete basis set limit. The four-component correlated polarizabilities represent a database of reference values of the dipole polarizability for the early tetravalent actinide ions.
Published Version
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