Study on the transition wavelengths and oscillator strengths of the 1s2n′g–1s2nh state of the Li-like system

In this paper, the spectral properties of 1s2n′g–1s2nh states of Li-like ions with larger atomic numbers (Z = 21–32) are studied. The transition wavelengths of 1s25g–1s2nh states from Sc XIX to Ge XXX are calculated. The dipole transition oscillator strengths of 1s2n′g–1s2nh configuration for Li-like ions under the three specifications of length, velocity, and acceleration have been obtained. It is found that the three simulation results obtained are very consistent. For the transition of 1s25g–1s2nh state, the dipole transition length oscillator strengths basically remain unchanged with increasing atomic number. The value of the transition oscillator strengths under the same Rydberg sequence decreases with increasing main quantum number n of the final state, and gradually tends to zero. Thus, the theoretical calculation of the oscillator strengths of the Li-like sequence with a higher atomic number in the entire energy threshold range is realized.