Bi_0.75La_0.25FeO₃ sample has been fabricated by a novel hydrothermal-assisted co-precipitation method. The X-Ray diffraction (XRD) and Fourier transform infrared (FTIR) studies confirmed that the sample was crystallized in orthorhombic (Pbnm) and rhombohedral (R3c) phases. Using differential thermal analysis (DTA), it is observed that the sample exhibits a Neel temperature (T_N= 581 K) and Curie temperature (T_C=1017K). UV-visible absorption spectrum of the sample exhibits two doubly degenerate d-d transitions and three charge transfer transitions. The temperature dependence of dielectric constant of the sample at different frequencies (0.12 to 100 kHz) exhibits two anomaly peaks at 497 and 707 K. An asymmetric shift in the coercive field of the hysteresis loop (M-H) indicates the presence of exchange bias effect in the sample.

Bi _0.75 La _0.25 FeO ₃样品已通过新型水热辅助共沉淀法制备。X射线衍射（XRD）和傅立叶变换红外（FTIR）研究证实，样品以正交晶（Pbnm）和菱形（R3c）相结晶。使用差热分析（​​DTA），可以观察到样品显示出尼尔温度（T _N = 581 K）和居里温度（T _C= 1017K）。样品的UV-可见吸收光谱显示出两个双简并dd跃迁和三个电荷转移跃迁。样品在不同频率（0.12至100 kHz）下的介电常数与温度的关系在497和707 K处显示两个异常峰。磁滞回线（MH）的矫顽场的不对称位移表明存在交换偏置效应。例子。