The YTi_0.5Mn_0.5O₃ (YTMO) perovskite was synthesized by the conventional solid-state method. The structural, electrical, dielectric and optical properties were investigated. The X-ray diffraction analysis and Rietveld refinements indicates that sample under study crystallizes in the orthorhombic structure with the Pmmm space group. The impedance spectroscopy studies show a relaxation phenomenon with non-Debye nature. The Nyquist plot confirms the presence of semicircles which, in turn, indicate the existence of both grain and grain boundary effect in the prepared ceramic. The study of AC conductivity has been discussed in detail and designated on the basis of the NSPT conduction mechanism. Activation energy was determined from DC conductivity as well as modulus spectra. The very equal values of the activation energies suggest that the process of the conduction mechanism and the relaxation behavior are similar. The behavior of dielectric constants was interpreted based on the Maxwell–Wagner’s theory of interfacial polarization. Thermodynamic parameters such as enthalpy, entropy have been calculated. From UV–Vis absorption spectrometry, the reflectance spectrum and the Kubelka-Munk model, reveal a direct and wide optical band gap evaluated at 4.69 eV. Moreover, the obtained Urbach energy (0.240 eV) confirms the presence of localized states in the YTMO structure. The extinction coefficient (k) was used to estimate the evolution of the refractive index n with the wavelength. Additionally, the refractive index (n) obeys to Cauchy relation. Furthermore, the dispersion coefficients were analyzed in the bases of Wemple and Di-Domenico model. The optical constants such as the skin depth and the optical conductivity were calculated and the results are discussed.

采用常规固相法合成了YTi _0.5 Mn _0.5 O _{3 (YTMO)钙钛矿。}研究了结构、电学、介电和光学特性。X 射线衍射分析和 Rietveld 精修表明所研究的样品以具有 Pmmm 空间群的斜方结构结晶。阻抗谱研究显示出具有非德拜性质的弛豫现象。奈奎斯特图证实了半圆的存在，这反过来表明所制备的陶瓷中存在晶粒和晶界效应。交流电导率的研究在NSPT传导机制的基础上进行了详细的讨论和指定。活化能由直流电导率和模量谱确定。活化能的非常相等的值表明传导机制的过程和弛豫行为是相似的。介电常数的行为是根据麦克斯韦-瓦格纳的界面极化理论来解释的。计算了焓、熵等热力学参数。根据紫外-可见吸收光谱、反射光谱和 Kubelka-Munk 模型，揭示了直接且宽的光学带隙，评估值为 4.69 eV。此外，获得的乌尔巴赫能量（0.240 eV）证实了YTMO结构中局域态的存在。消光系数 (k) 用于估计折射率 n 随波长的变化。另外，折射率(n)服从柯西关系。进一步在Wemple和Di-Domenico模型的基础上对离散系数进行了分析。计算了趋肤深度和光导率等光学常数，并对结果进行了讨论。