6533b7defe1ef96bd1275dfa

RESEARCH PRODUCT

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

V. A. DzubaB. G. C. LackenbyVictor V. FlambaumVictor V. Flambaum

subject

PhysicsAtomic Physics (physics.atom-ph)FOS: Physical scienceschemistry.chemical_elementBohriumConfiguration interaction7. Clean energy01 natural sciencesHassiumPhysics - Atomic Physics010305 fluids & plasmasAtomic orbitalchemistryAb initio quantum chemistry methodsSeaborgium0103 physical sciencesPhysics::Atomic PhysicsAtomic physicsElectric dipole transition010306 general physicsRelativistic quantum chemistry

description

We use recently developed efficient versions of the configuration interaction method to perform {\em 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.

https://doi.org/10.1103/physreva.99.042509