Correlation between the structural and spectroscopic parameters for Cd1-3xGd2x□xMoO4 solid solutions where □ denotes cationic vacancies
Correlation between the structural and spectroscopic parameters for Cd1-3xGd2x□xMoO4 solid solutions where □ denotes cationic vacancies
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DOI：
10.1016/j.matchemphys.2013.02.050
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发表时间：
2013-05-15
影响因子：
4.6
通讯作者：
Ropuszynska-Robak, P.
中科院分区：
文献类型：
--
作者：
Godlewska, P.;Tomaszewicz, E.;Ropuszynska-Robak, P.
本文用因子群方法（正方形表示阳离子空位）研究和分析了Cd_（1 - 3）Gd_（2-x）MoO_4固溶体的傅里叶变换红外光谱和拉曼光谱。本文采用四氢I_4（1）/a（（C_4H）-H ~（-6））空间群，Z = 2。已提出的内部和外部模式所观察到的频带的分配和相关的固溶体的形成，其中钆含量已在0-1.0的范围内变化。光学光谱研究表明，可见的依赖性的过渡对应于阳离子空位上的Gd 3+含量。的晶体学和光谱数据之间的相关性进行了讨论，在CdMoO 4主机晶格中的缺陷引起的固溶体的结构变化。(C)2013爱思唯尔有限公司版权所有。
Fourier transform IR and Raman spectra of the Cd1-3xGd2x square xMoO4 solid solutions have been studied and analysed using the factor group approach (square denotes the cationic vacancies). The tetragonal I4(1)/a ((C4H)-H-6) space group with Z = 2 have been applied in the discussion. The assignment of the bands observed to the internal and external modes has been proposed and related to the formation of the solid solutions in which the gadolinium content has been changed in the range 0-1.0. The optical spectroscopic studies show visible dependence of the transition corresponds to the cationic vacancy on the Gd3+ content. The correlation between the crystallographic and spectroscopic data has been discussed in terms of the structural changes of the solid solutions induced by the defects in the CdMoO4 host lattice. (C) 2013 Elsevier B.V. All rights reserved.