[Electronic spectra and energy levels analysis of Ho3+ in Cs2NaYF6].
2010
The electronic spectra and energy levels of Ho3+ in Cs2NaYF6 were studied on basis of rare earth (RE) spectrum,quantum mechanics and crystal field theory.Detailed analysis on electronic Absorption spectra at temperatures down to 10 K in the range of 4 600-24 000 cm-1 was carried out.The transitions,with zero phonon lines (ZPL) and abundant vibronic sidebands,from ground states to different excited states such as 5IJ(J=7,6,5,4),5FS(S=5,4,3),5GP(P=6,5) and 3K8 were clearly observed.All the transitions have been assigned and 50 experimental crystal field levels have been obtained.The dataset has been investigated by standard f-shell program,which gave out the calculated energy levels and the corresponding empirical Hamiltonian parameters.The comparison of the energy levels and Hamiltonian parameters was made with that of Cs2NaYCl6:Ho3+ as well.
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