Theoretical study on the 1s²2s–1s²np transitions for Ni²⁵+ ion

Abstract

The transition energies, wavelengths and oscillator strengths for the 1s²2s–1s²np (n 9) transitions of Ni²⁵+ ion are calculated. In calculation of the energies, we not only take account of the firstorder corrections from relativistic and mass–polarization effects, but also estimate the higher-order relativistic contribution and QED correction by introducing the effective nuclear charge. The results agree with experimental data available in literature satisfactorily. Grotrian diagram showing these transitions is given.

Keywords

Ni²⁵+ ion / higher-order relativistic contribution and QED corrections / Grotrian diagram / oscillator strength

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