Spin-orbit interaction in the first excited 4f-level in trivalent lanthanides

被引：2
|
作者：
Petrov, Dimitar N. [1 ]
Angelova, B. M. [1 ,2 ]
机构：
[1] Plovdiv Univ Paisii Hilendarski, Dept Phys Chem, 24 Tsar Asen Str, Plovdiv 4000, Bulgaria
[2] Univ Food Technol, Dept Inorgan & Phys Chem, 26 Maritsa Boul, Plovdiv 4000, Bulgaria
来源：
CHEMICAL PHYSICS LETTERS | 2024年 / 838卷
关键词：
Lanthanide (3+) ions; Spin-orbit interaction; FREE-ION; ELECTRONIC CONFIGURATIONS; SYSTEMATIC ANALYSIS; ENERGY-LEVELS; SPECTRA; TRANSITION; LEVEL; ND3+; TRI;
D O I：
10.1016/j.cplett.2024.141083
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The spin-orbit interaction has been considered for the first excited 4flevel in free ions Ln IV and Ln3+: LaF3 crystals. The matrix elements of spin-orbit interaction have been calculated and varied with the level population at T = 298.15 K. It has been found that the first excited 4flevels in these systems exhibit lower values of matrix elements than those for the ground levels, except Yb IV, Yb3+: LaF3. The ratio of the spin-orbit coupling constants zeta 4f (crystal)/zeta 4f (free ion) is <= 1 in the series, thus revising the concept for nephelauxetic effect in this relation.
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页数：4
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