Abstract In this study, calcined ZrTe3O8 powder mixed with 7%wt of CuO was sintered at 750 °C. The new doped ceramic ZrTe3O8:7%CuO was synthesized using solid state reaction method and was studied with X-ray diffraction (XRD). At room temperature, the title compound crystallizes in cubic space group Ia 3 ‾ , with lattice parameter a = 11.328(3) A, and exhibits a complex network of interconnected closed chains built up of TeO4E (E = electronic lone pair of Te (IV) atoms). The Zr/CuO6 octahedra are inserted into these chains ensuring the stability of the structure by Zr/Cu –O–Te bonding contacts. IR and Raman spectroscopic study are employed as means to obtain preliminary structural information and confirms the presence of the ZrO6 and TeO4E groups. Optical properties of the ceramic were explored by using UV–Vis absorption. The magnetic results reveal the appearance of a weak ferromagnetic behavior at low temperature (TC = 46.172 K). In addition, dielectric data were analyzed using real and imaginary permittivity e ’ and e ’’ respectively, the tan (δ) and the electrical modulus ( M ’ and M″) for the sample ZrTe3O8:7%CuO at various frequencies. The Z ’ and Z ’’ versus frequency plots are well fitted to an equivalent circuit model composed of a series combination of two parallel combinations of resistance Ri and constant phase element CPEi.

中文翻译：

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新型掺杂陶瓷 ZrTe3O8:7%CuO 的晶体结构、光谱、磁性和介电研究

摘要 在这项研究中，煅烧 ZrTe3O8 粉末与 7%wt CuO 混合，在 750 °C 下烧结。采用固态反应法合成了新型掺杂陶瓷 ZrTe3O8:7%CuO，并用 X 射线衍射 (XRD) 进行了研究。在室温下，标题化合物在立方空间群 Ia 3 ‾ 中结晶，晶格参数 a = 11.328(3) A，并表现出由 TeO4E（E = Te (IV ) 原子)。Zr/CuO6 八面体插入这些链中，通过 Zr/Cu -O-Te 键合接触确保结构的稳定性。IR 和拉曼光谱研究被用作获取初步结构信息并确认 ZrO6 和 TeO4E 基团存在的手段。通过使用紫外-可见吸收来探索陶瓷的光学特性。磁性结果揭示了在低温 (TC = 46.172 K) 下出现弱铁磁行为。此外，分别使用实部和虚部介电常数 e ' 和 e ''、样品 ZrTe3O8:7%CuO 在不同频率下的 tan (δ) 和电模量（M' 和 M”）分析介电数据。Z ' 和 Z '' 与频率的关系图非常适合等效电路模型，该模型由电阻 Ri 和恒定相位元件 CPEi 的两个并联组合的串联组合组成。