Abstract

CuFe₂O₄ (CF), Cu_0.5Mn_0.5Fe₂O₄ (CMF), and Cu_0.5Mn_0.5Fe_1.5La_0.5O₄ (LCMF) ferrite nanocomposites were synthesized by simple sonochemical reaction. The structural, optical, and magnetic properties of the prepared CF, CMF, and LCMF ferrite nanocomposites were analyzed through x-ray diffraction pattern, Fourier transform infrared spectra, ultraviolet spectra, x-ray photoelectron spectroscopy (XPS), scanning electron microscopy, and vibrating sample magnetometer loop. The crystal size of the LCMF ferrite ternary nanocomposite was less than that of the CF and CMF ferrite nanocomposites. XPS revealed the oxidation state (Cu 2p, Mn 2p, La 3d, Fe 2p, and O 1s) and the binding energy of the element present in the prepared CF, CMF, and LCMF ferrite ternary nanocomposites. The scanning electron microscopy images showed spherical morphology. The optical bandgap energy of LCMF was 5.33 eV higher than that of the CF (1.66 eV) and CMF (2.10 eV) ferrite nanocomposites. The coercivity of the prepared ferrite nanocomposites confirmed soft magnetic nature of the CF, CMF, and LCMF ferrite nanocomposites. By doping a small amount of La³⁺ ions in CMF nanoferrite, it was found that the doped LCMF ferrite ternary nanocomposite has a high permeability, which enhances the useful magnetic properties of LCMF ferrite nanocomposite for electronic devices. The optical bandgap and high permeability of the LCMF ferrite ternary nanocomposite are more suitable for microwave absorption application.

中文翻译：

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La / Cu / Cu-Mn铁氧体三元纳米复合材料的结构，形态和光磁性能

摘要

CuFe ₂ O ₄（CF），Cu _0.5 Mn _0.5 Fe ₂ O ₄（CMF）和Cu _0.5 Mn _0.5 Fe _1.5 La _0.5 O ₄通过简单的声化学反应合成了（LCMF）铁氧体纳米复合材料。通过X射线衍射图谱，傅立叶变换红外光谱，紫外光谱，X射线光电子能谱（XPS），扫描电子显微镜和X射线衍射分析了制备的CF，CMF和LCMF铁氧体纳米复合材料的结构，光学和磁性。振动样品磁力计回路。LCMF铁氧体三元纳米复合材料的晶体尺寸小于CF和CMF铁氧体三元纳米复合材料的晶体尺寸。XPS揭示了氧化态（Cu 2 p，Mn 2 p，La 3 d，Fe 2 p和O 1 s）以及制备的CF，CMF和LCMF铁氧体三元纳米复合材料中元素的结合能。扫描电子显微镜图像显示球形形态。LCMF的光带隙能量比CF（1.66 eV）和CMF（2.10 eV）铁氧体纳米复合材料高。制备的铁氧体纳米复合材料的矫顽力证实了CF，CMF和LCMF铁氧体纳米复合材料的软磁特性。通过掺杂少量的La ³⁺离子在CMF纳米铁氧体中被发现，掺杂的LCMF铁氧体三元纳米复合材料具有很高的磁导率，从而增强了LCMF铁氧体纳米复合材料在电子设备中的有用磁性能。LCMF铁氧体三元纳米复合材料的光学带隙和高磁导率更适合微波吸收应用。