Spectroscopic properties of tetravalent uranium in glasses

JOURNAL OF ALLOYS AND COMPOUNDS

卷:285

Article

Binnemans, K ; Couwenberg, I ; De Leebeeck, H ; Görller-Walrand, C ; Adam, JL

关键词: actinides;    uranium;    spectroscopy;    MCD;    magnetic circular dichroism;    absorption;    fluoride glasses;    praseodymium;   

DOI  :  10.1016/S0925-8388(98)00967-0

来源: Elsevier

【 摘 要 】

The spectroscopic properties of the tetravalent uranium ion (U4+) have been investigated in fluoride, fluorophosphate and phosphate glasses. Absorption and magnetic circular dichroism (MCD) spectra were recorded. The energy levels of the 5f(2) electronic configuration of U4+ are simulated by a set of free-ion parameters and expressions for the 5f(2) wavefunctions are presented. The spectroscopic behaviour of U4+ in glasses is compared with the spectroscopic behaviour of U4+ in other matrices. Special attention is paid to the similarities between the 5f(2) electronic configuration of tetravalent uranium and the 4f(2) configuration of trivalent praseodymium. (C) 1999 Elsevier Science S.A. All rights reserved.

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