Herein, this work aims to reveal the impact of gamma irradiation with different doses on structural, ferromagnetic resonance, optical, and dispersion properties of PVC/Mn_0.5Zn_0.5Fe₂O₄ nanocomposite films. The Mn_0.5Zn_0.5Fe₂O₄ nanoparticles (NPs) were synthesized via the sol-gel method. XRD pattern of Mn_0.5Zn_0.5Fe₂O₄ powder confirmed of presence of the hematite (α-Fe₂O₃) as a second phase. The PVC/Mn_0.5Zn_0.5Fe₂O₄ nanocomposite films were assembled via the solution casting technique. The EDX spectra confirmed the elemental composition of Mn_0.5Zn_0.5Fe₂O₄ NPs. Also, the XRD, and FTIR patterns proved the successful preparation of PVC/Mn_0.5Zn_0.5Fe₂O₄ nanocomposite films. The effect of radiation on the produced defects has a significant role in tuning the properties. Likewise, the ferromagnetic resonance behavior was examined via EPR spectrometer. The number of spins was reduced sharply as the $\gamma$-rays doses increasing up to 50 kGy and then increased at 75 kGy. The energy gap was decreased by increasing the irradiation doses up to 50 kGy and then increased at 75 kGy. Besides, a remarkable impact of $\gamma$-irradiation on the oscillator energy and the dispersion energy of pristine and $\gamma$- rays irradiated PVC/Mn_0.5Zn_0.5Fe₂O₄ nanocomposite films was detected. Further, the static dielectric constant was decreased with the increase in the gamma irradiation doses. Moreover, the nonlinear optical susceptibility was reduced with the increase in the gamma irradiation doses. Furthermore, the VELF, SELF functions and the optical conductivity were enhanced as the $\gamma$- rays doses increased. Overall, the linear/nonlinear optical and dispersion properties of irradiated PVC/Mn_0.5Zn_0.5Fe₂O₄ nanocomposite films make of them proper materials for flexible optoelectronic devices.

在此，本工作旨在揭示不同剂量的伽马辐射对 PVC/Mn _0.5 Zn _0.5 Fe ₂ O ₄纳米复合薄膜的结构、铁磁共振、光学和分散性能的影响。Mn _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒（NPs）是通过溶胶-凝胶法合成的。Mn _0.5 Zn _0.5 Fe ₂ O ₄粉末的XRD图谱证实存在赤铁矿（α-Fe ₂ O ₃）作为第二相。PVC/Mn _0.5 Zn _0.5 Fe ₂O ₄纳米复合膜通过溶液浇铸技术组装。EDX 光谱证实了 Mn _0.5 Zn _0.5 Fe ₂ O ₄ NPs的元素组成。此外，XRD 和 FTIR 谱图证明成功制备了 PVC/Mn _0.5 Zn _0.5 Fe ₂ O ₄纳米复合薄膜。辐射对产生的缺陷的影响在调整特性方面具有重要作用。同样，通过 EPR 光谱仪检查铁磁共振行为。旋转次数急剧减少，因为$\gamma$射线剂量增加到 50 kGy，然后增加到 75 kGy。通过将辐照剂量增加到 50 kGy 来减小能隙，然后在 75 kGy 时增加。此外，影响显着$\gamma$- 对振荡器能量和原始和色散能量的辐照 $\gamma$- 检测到射线照射的 PVC/Mn _0.5 Zn _0.5 Fe ₂ O ₄纳米复合膜。此外，静态介电常数随着伽马辐射剂量的增加而降低。此外，随着伽马辐射剂量的增加，非线性光学敏感性降低。此外，随着 VELF、SELF 功能和光导率的增强，$\gamma$- 射线剂量增加。总的来说，经辐照的 PVC/Mn _0.5 Zn _0.5 Fe ₂ O ₄纳米复合薄膜的线性/非线性光学和色散特性使其成为柔性光电器件的合适材料。