
We report on the results of measurements intended to elucidate the mechanism of the total transport from sensitizer to activator in GdB3-O6-Bi,Tb. We observed Gd3+ trap emission at low temperatures. Not only shallow (~ 50 cm-1) traps were found, but also very deep ones (~ 500 cm-1). The decay of the intrinsic Gd3+ ions shows that the migration among the Gd3+ lattice is of the fast-diffusion type.
[PHYS.HIST] Physics [physics]/Physics archives
[PHYS.HIST] Physics [physics]/Physics archives
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