Abstract

Abstract The trivalent rare earth ions occupy the eight-coordinated (dodecahedral) sites (D2 point symmetry) in Gd3Ga5O12:Eu3+ crystal. The flourescence of Eu3+ has been investigated using laser- excited site-selection spectroscopy. It was seen three distinct sites deduced from the spectra, one of them owing to the garnet site. The emission and excitation spectra of non-garnet site are consistent with the low symmetry point of C2v site.

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