A5RE4X[TO4]4 crystal growth and photoluminescence. Hydroflux synthesis of sodium rare earth silicate hydroxides
作者： Allison M. Latshaw , W. Michael Chance , Nathan Trenor , Gregory Morrison , Mark D. Smith
DOI: 10.1039/C5CE00630A
关键词:
摘要: Single crystals of Na5RE4(OH)[SiO4]4 (RE = Pr, Nd, Sm, Eu, Tb–Yb, Y) were grown using the hydroflux synthetic method. All compositions adopt tetragonal I space group with lattice parameter ranges a 11.5275(4)–12.0588(3) A and c 5.3951(4)–5.4846(13) A. Intense photoluminescent properties observed for Na5Eu4(OH)[SiO4]4, Na5Gd4(OH)[SiO4]4, Na5Tb4(OH)[SiO4]4. The magnetic susceptibility was measured rare earth containing compositions, where terbium analogue displayed antiferromagnetic order at T 2.8 K.
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