Open AccessThe study of gadolinium tantalum niobate (Gd(NbxTa1-x)O4) by local cathodoluminescence technique
Author(s) -
Г. А. Гусев,
С. М. Маслобоева,
M. V. Zamoryanskaya
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1697/1/012154
Subject(s) - cathodoluminescence , niobium , tantalum , gadolinium , materials science , analytical chemistry (journal) , microanalysis , monoclinic crystal system , lithium niobate , solid solution , tungstate , ceramic , luminescence , crystallography , crystal structure , chemistry , metallurgy , optoelectronics , organic chemistry , chromatography
In this work, the powder and ceramic samples of gadolinium tantalum niobate (Gd(Nb x Ta 1-x )O 4 ) grown by the liquid-phase method were studied. Phase homogeneity and composition were determined by x-ray diffraction analysis and electron probe microanalysis. Luminescent properties were studied by local cathodoluminescence technique. All samples obtained a high phase homogeneity. It was found that the dependence of the monoclinic lattice parameters on the niobium content in the niobium-tantalum pair has monotonic character. The solid solutions were formed at synthesis temperatures from 1180 to 1400°C. The sample of pure gadolinium niobate (GdNbO 4 ) showed the maximal cathodoluminescence intensity.