三电离钍的光谱结构

Physica B+C Pub Date : 1988-08-01 DOI:10.1016/0378-4363(88)90312-9

P.F.A. Klinkenberg

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引用次数: 12

摘要

扩展了三次电离钍原子的能级格式，确定了电离极限为231 065 cm−1 (Ky)，对应的电离电位为28.65 V，不确定度为±0.03 V。由于自然有效电位的特殊形状，第四和第三轨道的低能级斯塔克位移与5f轨道对外部电场的极端敏感性有关。

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Spectral structure of trebly ionized thorium, Th IV

The level scheme of trebly ionized thorium atoms is extended and the ionization limit is determined at 231 065 cm⁻¹ (Ky), corresponding to an ionization potential of 28.65 V, with an uncertainty of ±0.03 V. The Stark shifts of low levels in both Th IV and Th III are shown to be connected with the extreme sensitivity of the 5f-orbital to external electric fields, owing to the peculiar shape of the natural effective potential.

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Physica B+C

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