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YFeO3-GdFeO3 solid solutions: Sol-gel synthesis, structural and magnetic properties
Solid State Sciences ( IF 3.4 ) Pub Date : 2021-05-12 , DOI: 10.1016/j.solidstatesciences.2021.106632
Dovydas Karoblis , Aleksej Zarkov , Kestutis Mazeika , Dalis Baltrunas , Gediminas Niaura , Aldona Beganskiene , Aivaras Kareiva

In the present work, a series of powdered Y1-xGdxFeO3 solid solutions (x from 0 to 1) was prepared by an aqueous sol-gel method. Structural properties of the synthesized species were investigated using powder X-ray diffraction (XRD), Raman and Mössbauer spectroscopies. It was demonstrated that single-phase compounds can be obtained in the whole compositional range between the end members of the series. Raman study revealed a gradual change of the Raman spectra depending on the chemical composition of samples. Room-temperature magnetic properties were shown to be strongly dependent on the ratio of Y3+ and Gd3+ ions in analyzed species. Consistent transition from hysteresis characteristic of YFeO3 to almost linear dependence of magnetization of GdFeO3 was observed with an increase of Gd content in prepared powders. On the other hand, this transition was accompanied by a significant increase of magnetization values.



中文翻译:

YFeO 3 -GdFeO 3固溶体:溶胶-凝胶合成,结构和磁性

在本工作中,通过水溶胶-凝胶法制备了一系列粉末状的Y 1-x Gd x FeO 3固溶体(x为0至1)。使用粉末X射线衍射(XRD),拉曼光谱和穆斯堡尔光谱法研究了合成物种的结构特性。已经证明,可以在该系列的末端成员之间的整个组成范围内获得单相化合物。拉曼研究表明,拉曼光谱的逐渐变化取决于样品的化学成分。结果表明,室温磁性能强烈依赖于所分析物种中Y 3+和Gd 3+离子的比率。从YFeO 3的磁滞特性一致过渡在制备的粉末中,随着Gd含量的增加,GdFeO 3的磁化强度几乎呈线性关系。另一方面,这种转变伴随着磁化值的显着增加。

更新日期:2021-05-18
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