Abstract

The ionic and phase compositions of Y_2.5Ce_0.5Fe_2.5Ga_2.5O₁₂ ferrogarnet samples obtained by gel combustion with subsequent vacuum annealing were studied for the first time by X-ray photoelectron spectroscopy and X-ray powder diffraction analysis. The X-ray powder diffraction data confirmed the phase homogeneity of Y_2.5Ce_0.5Fe_2.5Ga_2.5O₁₂ and the absence of a cerium dioxide impurity. At the same time, on the surface of Y_2.5Ce_0.5Fe_2.5Ga_2.5O₁₂ particles, along with Ce³⁺, there are Ce⁴⁺ ions.

中文翻译：

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凝胶燃烧法制备Y2.5Ce0.5Fe2.5Ga2.5O12铁石榴石粉末的离子和相组成

摘要

首次通过X射线光电子能谱和X射线粉末衍射分析研究了凝胶燃烧后真空退火得到的Y _2.5 Ce _0.5 Fe _2.5 Ga _2.5 O ₁₂铁石榴石样品的离子和相组成。X射线粉末衍射数据证实了Y _2.5 Ce _0.5 Fe _2.5 Ga _2.5 O ₁₂的相均匀性和不存在二氧化铈杂质。同时，在Y _2.5 Ce _0.5 Fe _2.5 Ga _2.5 O _12的表面颗粒中，除了Ce ³⁺，还有Ce ⁴⁺离子。