A synthetic approach to highly transparent magnetic nanocomposite thin film by incorporating magnetic Fe₃O₄ nanoparticles (NPs) into silica–titania (Si_xTi_1–xO_2–y, STO) film in a low-temperature sol–gel process (∼90 °C) is presented in this study. The optical transmittance of Fe₃O₄–STO nanocomposite films with a NP concentration of 1–30 wt % is between 99% and 86% at 550 nm. The transparent film possesses a magnetization value as high as 12 emu/g at 0.5 T and exhibits an electromagnetic interference shielding response in the range of 2.6–18 GHz. The highly transparent magnetic thin film with nanometer thickness is derived using the sol–gel method with advantages of low-temperature, feasibility, and cost-effective process, which is promising in practical applications.

中文翻译：

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纳米超厚溶胶-凝胶二氧化硅-二氧化钛薄膜注入超顺磁性Fe ₃ O ₄纳米粒子用于电磁干扰屏蔽。

通过在低温溶胶-凝胶工艺中将磁性Fe ₃ O ₄纳米颗粒（NPs）掺入二氧化硅-二氧化钛（Si _x Ti _{1– x} O _{2– y}，STO）膜中的一种高透明磁性纳米复合薄膜的合成方法（这项研究提出了约90°C）。Fe ₃ O _4的透光率NP浓度为1–30 wt％的–STO纳米复合膜在550 nm处介于99％和86％之间。透明膜在0.5 T时的磁化值高达12 emu / g，并在2.6-18 GHz范围内表现出电磁干扰屏蔽响应。纳米厚度的高透明磁性薄膜是使用溶胶-凝胶法获得的，具有低温，可行性和成本有效的优点，这在实际应用中是有希望的。