Flux Crystal Growth, Crystal Structure, and Optical Properties of New Germanate Garnet Ce₂CaMg₂Ge₃O₁₂.

ABSTRACT: A new germanate garnet compound, Ce₂CaMg₂Ge₃O₁₂, was synthesized via flux crystal growth. Truncated spherical, reddish-orange single crystals with a typical size of 0.1-0.3 mm were grown out of a BaCl₂-CaCl₂ melt. The single crystals were characterized by single-crystal X-ray diffraction analysis, which revealed that it adopted a cubic garnet-type structure with a = 12.5487(3) Å in the space group Ia-3d. Its composition is best described as A ₃ B ₂ C ₃O₁₂, where Ce/Ca, Mg, and Ge occupied the A, B, and C sites, respectively. A UV-vis absorption spectroscopy measurement on the germanate garnet revealed a clear absorption edge c

SUBMITTER: Chen J 

PROVIDER: S-EPMC7039934 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature