Exploration of structural, vibrational and spectroscopic properties of self-activated orthorhombic double molybdate RbEu(MoO4)2 with isolated MoO4 units
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https://www.sciencedirect.com/science/article/pii/S0925838819300131https://elib.sfu-kras.ru/handle/2311/129538
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2019-05Журнал:
Journal of Alloys and CompoundsКвартиль журнала в Scopus:
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Q1Библиографическое описание:
Victor V.Atuchin. Exploration of structural, vibrational and spectroscopic properties of self-activated orthorhombic double molybdate RbEu(MoO4)2 with isolated MoO4 units [Текст] / Victor V.Atuchin, Aleksandr S. Aleksandrovsky, Bair G. Bazarov, Jibzema G. Bazarova, Olga D. Chimitova, Yuriy G. Denisenko, Tatyana A. Gavrilova, Alexander S. Krylov, Eugene A. Maximovskiy, Maxim S. Molokeev, Aleksandr S. Oreshonkov, Alexey M. Pugachev, Nikolay V. Surovtsev // Journal of Alloys and Compounds. — 2019. — Т. 785. — С. 692-697Аннотация:
RbEu(MoO4)2 is synthesized by the two-step solid state reaction method. The crystal structure of RbEu(MoO4)2 is defined by Rietveld analysis in space group Pbcn with cell parameters a=5.13502(5), b=18.8581(2) and c=8.12849(7) Å, V=787.13(1) Å3, Z=4 (RB=0.86%). This molybdate possesses its phase transition at 817 K and melts at 1250K. The Raman spectra were measured with the excitation at =1064 and 514.5nm. The photoluminescence spectrum is evaluated under the excitation at 514.5nm. The absolute domination of hypersensitive 5D0→7F2 transition is observed. The ultranarrow 5D0→7F0 transition in RbEu(MoO4)2 is positioned at 580.2nm being 0.2nm blue shifted, with respect to that in Eu2(MoO4)3.