Hyperfine structure in thallium atom: Study of nuclear magnetization distribution effects.

Area of Science:

• Atomic Physics
• Quantum Chemistry
• Nuclear Physics

Background:

• Hyperfine structure in atomic electronic states is influenced by nuclear properties.
• Understanding these effects is crucial for precise atomic spectroscopy and calculations.

Purpose of the Study:

• To investigate the impact of nuclear magnetization distribution on thallium atom's electronic states.
• To predict nuclear magnetic moments for thallium isotopes and magnetic anomalies.

Main Methods:

• Relativistic coupled cluster theory was employed for theoretical calculations.
• Comparison with available experimental data was used for validation and prediction.

Main Results:

• The significance of nuclear magnetization distribution effects on the 6P_3/2 state of thallium was determined.
• Nuclear magnetic moments for ¹⁹¹Tl^m and ¹⁹³Tl^m were predicted as 3.79(2) μ_N and 3.84(3) μ_N.
• Magnetic anomalies for the 7S_1/2 state of neutral Tl and 1S_1/2 state of hydrogen-like Tl were predicted.

Conclusions:

• Nuclear magnetization distribution significantly influences the hyperfine structure of thallium's electronic states.
• The study provides valuable predictions for nuclear magnetic moments and magnetic anomalies in thallium.