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发明公开
CN105845436A 一种SrFeO2.5磁性薄膜及其制备方法 无效 - 撤回

一种SrFeO2.5磁性薄膜及其制备方法
摘要：
本发明提供了一种SrFeO2.5磁性薄膜及其制备方法，将Sr(NO3)2和Fe(NO3)3·H2O溶解于乙二醇和醋酸酐的混合液中，搅拌均匀，得到SrFeO2.5前躯液。采用旋涂法和逐层退火的工艺，在基片上制得SrFeO2.5磁性薄膜。本发明设备要求简单，实验条件容易达到，化学组分精确可控，制备的SrFeO2.5磁性薄膜均匀性较好，具有正交结构。当测试频率为1kHz时，该薄膜的介电常数为425；当电场为100kV/cm时，该薄膜的漏电流密度为1.07×10?4A/cm2，室温下，该薄膜的饱和磁化值为5.4emu/cm3，剩余磁化值为0.45emu/cm3。
摘要（英）：

The invention provides an SrFeO2.5 magnetic thin film and a preparation method therefor. Sr(NO3)2 and Fe(NO3)3.H2O are dissolved into a mixed liquid of ethylene glycol and acetic anhydride to be stirred uniformly to obtain an SrFeO2.5 precursor liquid; and then the SrFeO2.5 magnetic thin film is prepared on a substrate through a spin-coating method and a layer-by-layer annealing process. The magnetic thin film is low in equipment requirement, the experimental conditions can be achieved easily, and the chemical components are accurate and controllable; the prepared SrFeO2.5 magnetic thin film is relatively high in uniformity, and has an orthorhombic structure; when the test frequency is 1kHz, the dielectric constant of the thin film is 425; when the electric filed is 100kV/cm, the leakage current density of the thin film is 1.07*10<-4>A/cm<2>; and at the room temperature, the saturation magnetization value of the thin film is 5.4emu/cm<3>, and the residual magnetization value is 0.45emu/cm<3>.

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