Factors affecting the Nd3+ (REE3+) luminescence of minerals

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Authors	LENZ Christoph TALLA Dominik RUSCHEL Katja ŠKODA Radek GOETZE Jens NASDALA Lutz
Year of publication	2013
Type	Article in Periodical
Magazine / Source	Mineralogy and Petrology
MU Faculty or unit	Faculty of Science
Citation
Doi	http://dx.doi.org/10.1007/s00710-013-0286-2
Field	Geology and mineralogy
Keywords	RARE-EARTH ELEMENTS; SITE-SELECTIVE SPECTROSCOPY; RESOLUTION SPECTROMETRIC ANALYSIS; BACKSCATTERED ELECTRON IMAGES; CATHODOLUMINESCENCE CL; ACTIVATED CATHODOLUMINESCENCE; CRYSTAL-CHEMISTRY; HIGH-TEMPERATURE; SOLID-SOLUTIONS; MONAZITE
Description	In this paper, possibilities and limits of the application of REE3+ luminescence (especially the Nd3+ F-4(3/2) -> I-4(9/2) emission) as structural probe are evaluated. Important factors controlling the Nd3+ luminescence signal are discussed, including effects of the crystal-field, crystal orientation, structural state, and temperature. Particular attention was paid to the study of the accessory minerals zircon (ZrSiO4), xenotime-(Y) (YPO4),monazite-(Ce)(CePO4) and their synthetic analogues. Based on these examples we review in short that (1) REE3+ luminescence can be used as non-destructive phase identification method, (2) the intensities of certain luminescence bands are strongly influenced by crystal orientation effects, and (3) increased widths of REE3+-related emission bands are a strong indicator for structural disorder. We discuss the potential of luminescence spectroscopy, complementary to Raman spectroscopy, for the quantitative estimation of chemical (and potentially also radiation-induced) disorder. For the latter, emissions of Nd3+-related centres are found to be promising candidates.
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