The influence of thermal disorder and static distortions on the local structure in microcrystalline solid solutions of tungstates ZncNi1-cWO4 with c=0.0-1.0 was investigated using temperature-dependent (10-300 K) x-ray absorption spectroscopy (XAS) at the W L3-edge. In addition, the vibrational properties of the solid solutions were studied by Raman spectroscopy. Our results indicate that the formation of solid solutions is accompanied by strong structural relaxations leading to the changes in the [WO6] octahedra distortions, which, in turn, affect the vibrational properties of tungstates. In particular, the frequency and band width of the highest W-O stretching mode at about 900 cm-1 show distinct composition dependence, following the local structure modifications as revealed by XAS.

中文翻译：

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钨酸盐固溶体 ZnncNi1-cWO4 (c = 0.0-1.0) 的 X 射线吸收和拉曼光谱研究

使用温度相关 (10-300 K) X 射线吸收光谱 (XAS) 在 W 下研究了热无序和静态变形对 c=0.0-1.0 的钨酸盐 ZnncNi1-cWO4 微晶固溶体局部结构的影响L3 边缘。此外，通过拉曼光谱研究了固溶体的振动特性。我们的结果表明，固溶体的形成伴随着强烈的结构弛豫，导致 [WO6] 八面体畸变的变化，进而影响钨酸盐的振动特性。特别是，在 XAS 揭示的局部结构修改之后，大约 900 cm-1 处最高 WO 拉伸模式的频率和带宽显示出明显的成分依赖性。