Study of La~+ Rydberg and autoionization states: ionization potential of La_(II)

摘要

From two excitation schemes with different intermediate state, 5d6d~1P_1 and 5d6d~3F_2, the La~+ Rydberg series converging to La~(2+) ground state 5d~2D_(3/2) were observed. The ionization threshold of La~+ was found to be 90212.8+-0.5 cm~(-1). The autoionization Rydberg series converging to the La~(2+) 5d~2D_(5/2) state were also obtained.