Study of multiferroic Y_1−xSr_xCrO₃ (x = 0.0, 0.1) chromite obtained through solid-state reaction technique is presented. The Rietveld refinement of the XRD profile shows the orthorhombic Pbnm crystal symmetry of the system. The bandgaps of YCrO₃ and Y_0.9Sr_0.1CrO₃ samples are found as ~ 2.31 and ~ 2.23 eV, respectively. The FTIR spectra peaks show a red shift in the case of Sr²⁺ ion doping in YCrO₃ indicating the reduction in cell volume. Two dielectric relaxation peaks are observed in the YCrO₃ , whereas Y_0.9Sr_0.1CrO₃ shows only one broad peak that is found to be extremely frequency dependent. The dielectric peak maxima shifts to higher temperatures with an increase in frequency in both the samples. This kind of dielectric variation is indicating a relaxor type of dielectric material. It is noted that the observed conductive process is closely associated with thermally stimulated oxygen vacancies. The P–E loops of both the samples have completely round shape with maximum polarization (P_max) being observed at zero electric field. For YCrO₃, the mechanism of leakage current conduction is in good agreement with the Ohmic conduction mechanism, whereas Y_0.9Sr_0.1CrO₃ agrees well with space charge-limited conduction mechanism. The decreased bandgap and leakage current makes the Sr²⁺ ion doping beneficial for various electronic applications.

 提出了通过固态反应技术获得的多铁性Y _{1− x} Sr _x CrO ₃（x = 0.0，0.1）亚铬酸盐的研究。XRD分布图的Rietveld细化显示了系统的正交晶体Pbnm晶体对称性。YCrO ₃和Y _0.9 Sr _0.1 CrO ₃样品的带隙分别为〜2.31和〜2.23 eV。在YCrO _3中掺杂Sr ²⁺离子的情况下，FTIR谱峰显示出红移，表明细胞体积减少。在YCrO ₃中观察到两个介电弛豫峰，而Y_0.9 Sr _0.1 CrO ₃仅显示一个宽峰，该峰极度依赖于频率。随着两个样品频率的增加，介电峰的最大值移至更高的温度。这种电介质变化表明电介质材料是弛豫器类型。应当指出，观察到的导电过程与热刺激氧空位密切相关。两个样品的P – E环完全为圆形，在零电场下观察到最大极化（P _max）。对于YCrO ₃，泄漏电流传导的机理与欧姆传导机理非常吻合，而Y_0.9 Sr _0.1 CrO ₃与空间电荷限制的传导机制非常吻合。带隙和漏电流的减小使Sr ²⁺离子掺杂对各种电子应用都有利。