期刊
PHYSICAL REVIEW A
卷 101, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.101.022502
关键词
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资金
- National Natural Science Foundation of China (NSFC) [91736102, 11974199]
- National Key R&D Program of China [2018YFA0306504]
Electron affinities (EAs) of many lanthanide elements still remain unknown due to their complicated electronic structures and relatively low EA values. In the present work, we utilized the slow-velocity map-imaging method combined with an ion trap to resolve conundrums. The EA values of praseodymium, neodymium, and terbium are determined to be 881.0(37) cm(-1) or 0.109 23(46) eV, 786.3(26) cm(-1) or 0.097 48(31) eV, and 1059.1(64) cm(-1) or 0.131 31(79) eV, respectively. We also observed several excited states of Pr, Nd, and Tb anions.
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