The VMI study on angular distribution of ejected electrons from Eu 4f<sup>7</sup>6p<sub>1/2</sub>6d autoionizing states

The VMI study on angular distribution of ejected electrons from Eu 4f⁷6p_1/26d autoionizing states

Zhang Kai^a),^b), Shen Li^a),^b), Dong Cheng^a),^b), Dai Chang-Jian†^a),^b)

Diagram of several excitation schemes, in which λ ₁ is fixed at 462.71 nm, and λ ₂ is fixed at 684.07 nm, 689.80 nm or 691.01 nm to populate several different 4f⁷6s6d (⁸D) Rydberg states, while λ ₃ is scanned to populate the 4f⁷6p_1/26d autoionizing states.