The excitation energies and term energies of the excited states 1s
 2
 n
 s (
 n
 =3,4,5) and 1s
 2
 n
 f (
 n
 =4,5) of lithium-like systems of
 Z
 =11-20

Zi-Ming, Ge; Wang, Zhiwen; Zhou, Yajun; He, Lianhua; Guo-Guang, Liu

doi:10.1088/1009-1963/12/5/305

Chinese Phys.

2003

DOI: 10.1088/1009-1963/12/5/305

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The excitation energies and term energies of the excited states 1s ² n s ( n =3,4,5) and 1s ² n f ( n =4,5) of lithium-like systems of Z =11-20

Ge Zi-Ming

Zhiwen Wang

Yajun Zhou

et al.

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Cited by 5 publications

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The Scaling Law in the Fine-Structure Splitting of 1s²npStates for the Lithium Isoelectronic Sequence

Cai¹,

Yu²,

Zhang³

2014

Chinese Phys. Lett.

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The 'full-core plus correlation' (FCPC) and the 'minimizing the expectation value of the Hamiltonian' methods are extended to calculate the fine-structure splitting of 1𝑠 2 𝑛𝑝 (𝑛 = 2-9) states for the lithium-like systems from 𝑍 = 21 to 30. The leading order relativistic effect is included by using first-order perturbation theory. The higherorder relativistic and the quantum-electrodynamics contributions to the fine-structure splitting are investigated under a hydrogenic approximation with effective nuclear charges. Our results are compared with other theoretical calculations and experimental results. It is shown that the FCPC method is also effective to obtain the ionic structure for high nuclear ions of lithium-like systems. By fitting our theoretical results, the scaling law of the fine-structure splitting of the lithium isoelectronic sequence behaves like a quartic function of the screened nuclear charge 𝑍 * .

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The Scaling Law in the Fine-Structure Splitting of 1s²npStates for the Lithium Isoelectronic Sequence

Cai¹,

Yu²,

Zhang³

2014

Chinese Phys. Lett.

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Behaviours of the excited states 1s²np along lithium isoelectronic sequence fromZ= 11 to 20

Wang

2008

Chinese Phys. B

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Based on the obtained energy values of 1s 2 np (n ≤ 9) states for lithium-like systems from Z=11 to 20 (by the authors of this paper: Hu M H and Wang Z W 2004 Chin. Phys. 13 662), this paper determines the quantum defects, as slowly varying function of energy, of this Rydberg series. Using them as input, it can predict the energies of any highly excited states below the ionization threshold for this series according to the quantum defect theory. The regularities of variation for quantum defects of the series along this isoelectronic sequence are physically analysed and discussed. The screening parameters, which are equal to the effective screening charge of the core-electrons, are also obtained.

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Transition energy and dipole oscillator strength for 1s ² 2p-1s ² nd of Cr ²¹⁺ ion

Wang

Liu

et al. 2008

Chinese Phys. B

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The transition energies, wavelengths and dipole oscillator strengths of 1s 2 2p-1s 2 nd (3 ≤ n ≤ 9) for Cr 21+ ion are calculated. The fine structure splittings of 1s 2 nd (n ≤ 9) states for this ion are also calculated. In calculating energy, we have estimated the higher-order relativistic contribution under a hydrogenic approximation. The quantum defect of Rydberg series 1s 2 nd is determined according to the quantum defect theory. The results obtained in this paper excellently agree with the experimental data available in the literature. Combining the quantum defect theory with the discrete oscillator strengths, the discrete oscillator strengths for the transitions from initial state 1s 2 2p to highly excited 1s 2 nd states (n ≥ 10) and the oscillator strength density corresponding to the bound-free transitions are obtained.

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The excitation energies and term energies of the excited states 1s ² n s ( n =3,4,5) and 1s ² n f ( n =4,5) of lithium-like systems of Z =11-20

Cited by 5 publications

References 0 publications

The Scaling Law in the Fine-Structure Splitting of 1s²npStates for the Lithium Isoelectronic Sequence

The Scaling Law in the Fine-Structure Splitting of 1s²npStates for the Lithium Isoelectronic Sequence

Behaviours of the excited states 1s²np along lithium isoelectronic sequence fromZ= 11 to 20

Transition energy and dipole oscillator strength for 1s ² 2p-1s ² nd of Cr ²¹⁺ ion

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The excitation energies and term energies of the excited states 1s 2 n s ( n =3,4,5) and 1s 2 n f ( n =4,5) of lithium-like systems of Z =11-20

Cited by 5 publications

References 0 publications

The Scaling Law in the Fine-Structure Splitting of 1s2npStates for the Lithium Isoelectronic Sequence

The Scaling Law in the Fine-Structure Splitting of 1s2npStates for the Lithium Isoelectronic Sequence

Behaviours of the excited states 1s2np along lithium isoelectronic sequence fromZ= 11 to 20

Transition energy and dipole oscillator strength for 1s 2 2p-1s 2 nd of Cr 21+ ion

Contact Info

Product

Resources

About

The excitation energies and term energies of the excited states 1s ² n s ( n =3,4,5) and 1s ² n f ( n =4,5) of lithium-like systems of Z =11-20

The Scaling Law in the Fine-Structure Splitting of 1s²npStates for the Lithium Isoelectronic Sequence

The Scaling Law in the Fine-Structure Splitting of 1s²npStates for the Lithium Isoelectronic Sequence

Behaviours of the excited states 1s²np along lithium isoelectronic sequence fromZ= 11 to 20

Transition energy and dipole oscillator strength for 1s ² 2p-1s ² nd of Cr ²¹⁺ ion