Optical spectroscopy and crystal field analysis of Cm3+ in LaCl3

Autor:	J.C. Krupa, M. Illemassene, K. M. Murdoch, Norman M. Edelstein
Rok vydání:	1997
Předmět:	Absorption spectroscopy Chemistry Liquid helium Biophysics General Chemistry Condensed Matter Physics Biochemistry Atomic and Molecular Physics and Optics Spectral line law.invention Ion law Excited state Atomic physics Luminescence Spectroscopy Excitation
Zdroj:	Journal of Luminescence. 75:77-87
ISSN:	0022-2313
DOI:	10.1016/s0022-2313(97)00116-6
Popis:	The optical spectrum of the Cm3+ ion diluted in the host crystal LaCl3 has been remeasured using the isotope 248Cm by absorption, fluorescence, excitation, and excited-state absorption spectroscopy. Analysis of these spectra resulted in the assignment of 103 energy levels, which were fitted to the parameters of an empirical Hamiltonian with an rms deviation of 15.7 cm−1. The free ion and crystal field parameters obtained from the empirical fit are consistent with an earlier systematic study of the trivalent actinide ions in this lattice. The lifetimes of the five fluorescent levels have been measured at room and liquid helium temperatures. These lifetimes are analyzed to establish the mechanisms which contribute to the relaxation of the excited Cm3+ ion in this host.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5770abf9598def777f362288b769a24 https://doi.org/10.1016/s0022-2313(97)00116-6 Zobrazit plný text záznamu Full Text from ScienceDirect