Relativistic multiconfiguration Dirac-Fock study of 3s²3p-3s²3d transition in aluminium isoelectronic sequence

Relativistic multiconfiguration Dirac-Fock transition energies and oscillator strengths are studied for the 3s²3p-3s²3d transition along the aluminium isoelectronic sequence. For certain systems, Al, Si⁺, Rh³²⁺, Ta⁶⁰⁺ and U⁷⁹⁺, transition energies, as well as oscillator strengths obtained in different schemes of calculation, namely the extended average level (EAL), average level (AL) and optimal level (OL) schemes, are compared and discussed. The influence of nuclear charge distribution upon energy levels and transition energies obtained are also investigated.