Abstract
Orthorhombic terbium molybdate, β′-Tb2(MoO4)3, microcrystals have been fabricated by solid state synthesis at T=750–1270K for t=290h. The crystal structure β′-Tb2(MoO4)3 has been refined by Rietveld method in space group Pba2 with cell parameters of a=10.35387(6), b=10.38413(6) and c=10.65695(7) Å (RB=1.83%). About 40 narrow Raman lines have been observed in the Raman spectrum recorded for the β′-Tb2(MoO4)3 powder sample. The luminescence spectrum of β′-Tb2(MoO4)3 has been measured under the excitation at 355nm, and the intensive photoluminescence band at 540–550nm has been found.
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