Measurement of the electron affinity of lanthanum
Measurement of the electron affinity of lanthanum
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DOI：
10.1088/0953-4075/31/20/002
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发表时间：
1998-05
期刊：
影响因子：
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通讯作者：
A. Covington;D. Calabrese;J. Thompson;T. J. Kvale
中科院分区：
文献类型：
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作者：
A. Covington;D. Calabrese;J. Thompson;T. J. Kvale
用激光光电子能谱测量了La的电子亲和力。这是第一次测量镧的电子亲和力，也是第一次测量稀土系列元素的电子亲和力。测得镧的电子亲和力为。在光电子能谱中还观察到至少一个束缚激发态，并测量了相对于La基态的结合能为。将目前的实验测量结果与最近的计算结果进行了比较。
The electron affinity of lanthanum has been measured using laser photoelectron energy spectroscopy. This is the first electron affinity measurement for lanthanum and one of the first measurements of an electron affinity of a rare-earth series element. The electron affinity of lanthanum was measured to be . At least one bound excited state of was also observed in the photoelectron spectra, and the binding energy relative to the ground state of lanthanum was measured as . The present experimental measurements are compared to a recent calculation.