Abstract
Crystals with the scheelite structure have been grown by the Czochralski technique from a melt of composition (Na0.5La0.345Ce0.15Er0.005)MoO4 (NLM:Ce,Er) and have been characterized by scanning and transmission electron microscopy and x-ray microanalysis. The crystals are shown to contain carbon inclusions and CeO2 precipitates, the latter oriented relative to the host matrix: [100]{0\(\bar 1\)2} NLM:Ce,Er ‖ [100]{0\(\bar 1\)1} CeO2. High-temperature annealing leads to recrystallization and growth of the CeO2 particles, which seems to be responsible for the adverse effect of annealing on the optical quality of the crystals.
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Original Russian Text © E.I. Suvorova, G.M. Kuz’micheva, A.V. Morozkin, E.V. Zharikov, D.A. Lis, K.A. Subbotin, 2007, published in Neorganicheskie Materialy, 2007, Vol. 43, No. 3, pp. 336–341.
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Suvorova, E.I., Kuz’micheva, G.M., Morozkin, A.V. et al. Microstructure of (Na0.5La0.5)MoO4 crystals coactivated with cerium and erbium ions. Inorg Mater 43, 287–291 (2007). https://doi.org/10.1134/S0020168507030144
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DOI: https://doi.org/10.1134/S0020168507030144