Magnetic ceramics (ferrites) have long held a prominent position in various applications owing to their favorable properties. In the realm of ferrites, yttrium iron garnet (YIG) possesses distinctive optical and magneto-optical properties. In this area, Ce and Pr elements can synergistically amplify the magneto-optical properties of garnet, although the solubility limitation of Ce restricts the addition of large amounts of this element. In the synthesized composition of Ce_xEu_0.25Pr_0.25Y_2.5-xFe₅O₁₂ (x = 0.25, 0.35, 0.5) in the current research, a fixed amount of 0.25 mol of Pr has been considered, and to prevent the deposition of CeO₂, 0.25 mol of Eu has been included as an additive. Additionally, a hypothesis has been proposed suggesting that the controlled depletion (3–8 wt%) of iron oxide can effectively boost the solubility of Ce in garnets. For the synthesis of samples, the optimized solid-state method has been used at two sintering temperatures of 1350 and 1420 °C in the air using oxide precursors. X-ray diffraction (XRD), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) mapping analyses have been utilized to investigate the crystallographic and phase properties. The findings reveal that Eu effectively elevates Ce solubility by 0.25 mol, aligning with expectations when co-doped with the other two elements possessing larger ionic radii than Y. This study represents the first instance of these elements being co-doped into garnet. Furthermore, the conducted tests provide support for the proposed hypothesis concerning the influence of Fe₂O₃ reduction on increasing Ce solubility. Consequently, this investigation achieves the successful incorporation of 0.35 mol of cerium into the garnet structure through a 3 wt% reduction of Fe₂O₃.

磁性陶瓷（铁氧体）由于其良好的性能，长期以来在各种应用中占据着突出的地位。在铁氧体领域，钇铁石榴石 (YIG) 具有独特的光学和磁光特性。在这一领域，Ce和Pr元素可以协同增强石榴石的磁光性质，尽管Ce的溶解度限制限制了该元素的大量添加。目前研究合成的Ce _x Eu _0.25 Pr _0.25 Y _2.5-x Fe ₅ O ₁₂ (x = 0.25,0.35,0.5)组成中，考虑了固定量的0.25 mol Pr，以防止沉积。在CeO ₂中，包含0.25mol的Eu作为添加剂。此外，还提出了一个假设，表明氧化铁的受控消耗（3-8 wt%）可以有效提高石榴石中 Ce 的溶解度。对于样品的合成，采用了优化的固态方法，在空气中使用氧化物前体在 1350 和 1420 °C 的两个烧结温度下进行。 X 射线衍射 (XRD)、傅里叶变换红外 (FTIR)、扫描电子显微镜 (SEM) 和能量色散 X 射线 (EDX) 绘图分析已用于研究晶体学和相特性。研究结果表明，Eu 有效地将 Ce 溶解度提高了 0.25 mol，与离子半径大于 Y 的其他两种元素共掺杂时的预期一致。这项研究代表了这些元素共掺杂到石榴石中的第一个实例。此外，所进行的测试为关于Fe ₂ O ₃还原对增加Ce溶解度的影响的假设提供了支持。因此，本研究通过减少 3 wt% 的 Fe ₂ O ₃，成功地将 0.35 mol 的铈掺入石榴石结构中。