Conundrum in Measured Electron Affinities of Complex Heavy Atoms
Conundrum in Measured Electron Affinities of Complex Heavy Atoms
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DOI：
10.26713/jamcnp.v5i2.1093
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发表时间：
2018-08
期刊：
影响因子：
--
通讯作者：
Z. Felfli;A. Msezane
中科院分区：
文献类型：
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作者：
Z. Felfli;A. Msezane
使用我们强大的 Regge-pole 方法计算电子弹性总截面，研究了来自镧系原子 Eu、Tb、Tm、Gd 和 Nd（包括 Nb）的低能电子散射。将提取的碰撞过程中形成的接地阴离子和亚稳态阴离子的结合能与测量的电子亲和力 (EA) 进行对比。结论是，这些原子的测量 EA 需要重新解释，并提出了新的推荐值。
Low-energy electron scattering from the lanthanide atoms Eu, Tb, Tm, Gd, and Nd including Nb is investigated through calculated electron elastic total cross sections using our robust Regge-pole methodology. The extracted binding energies of the resultant ground and metastable anions formed during the collisions are contrasted with the measured electron affinities (EAs). It is concluded that the measured EAs for these atoms require reinterpretation and new recommended values are presented.