Enhanced electrical and magnetic properties of samarium substituted spinel ferrites

IF 1.7 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Electroceramics Pub Date : 2023-01-26 DOI:10.1007/s10832-023-00304-2

Salma Aman, Naseeb Ahmad, Muhammad Bilal Tahir, Soumaya Gouadria, H. A. Alburaih, Muhammad Zeshan, Hafiz Muhammad Tahir Farid

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引用次数: 2

Abstract

The present study aimed to verify the experimentally obtained results by exploring the several properties of the material (i.e. magnetic, structural, and direct current (DC)-electrical properties). Trivalent rare-earth element samarium (Sm³⁺)doped barium spinel ferrites BaSm_xFe_2−xO₄ for compositions with the following x values: 0, 0.025, 0.05, 0.075, and 0.1 were subjected to the sol-gel procedure for processing. All of the samples, according to X-ray diffraction (XRD) investigation, developed a structure with a single phase that is cubic. The structural parameters, including lattice constants, crystalline size (nm), densities (bulk and X-ray), and unit-cell volume, were observed. The semiconductor natureof the prepared materials was demonstrated by the use of two-probe tests to estimate DC resistivity (ρ_dc), Curie temperature (T_c). Ferromagnetic materials’ properties resemble remenance (M_r), coercivity (H_c), saturation magnetization (M_s), and changes that resulted from the insertion of Sm³⁺ was injected in the M-H condition (magnetization-applied field) loops are assigned to each individual nanoparticle. It’s been discovered that the evolution of the anisotropic constant is kind of analogous to those of the coercivity. The current synthesized barium ferrites have been confirmed to really be useful as in manufacturing of high-density magnetic storage applications.

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钐取代尖晶石铁氧体的电磁性能增强

本研究旨在通过探索材料的几个特性(即磁性，结构和直流(DC)电特性)来验证实验得到的结果。采用溶胶-凝胶法制备了三价稀土元素钐(Sm3+)掺杂钡尖晶石铁氧体BaSmxFe2−xO4，其组成成分分别为0、0.025、0.05、0.075和0.1。根据x射线衍射(XRD)的研究，所有样品都形成了一种具有立方相的单相结构。观察了结构参数，包括晶格常数、晶体尺寸(nm)、密度(体积和x射线)和单胞体积。通过双探头测试，对制备的材料的直流电阻率(ρdc)和居里温度(Tc)进行了估计，证明了材料的半导体性质。铁磁材料的性质类似于剩余物(Mr)、矫顽力(Hc)、饱和磁化强度(Ms)，并且在M-H条件下注入Sm3+导致的变化被分配给每个单独的纳米颗粒。我们发现，各向异性常数的演变与矫顽力的演变有些相似。目前所合成的钡铁氧体已被证实在制造高密度磁存储器方面确实有用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electroceramics 工程技术-材料科学：硅酸盐

CiteScore

2.80

自引率

5.90%

发文量

审稿时长

5.7 months

期刊介绍： While ceramics have traditionally been admired for their mechanical, chemical and thermal stability, their unique electrical, optical and magnetic properties have become of increasing importance in many key technologies including communications, energy conversion and storage, electronics and automation. Electroceramics benefit greatly from their versatility in properties including: -insulating to metallic and fast ion conductivity -piezo-, ferro-, and pyro-electricity -electro- and nonlinear optical properties -feromagnetism. When combined with thermal, mechanical, and chemical stability, these properties often render them the materials of choice. The Journal of Electroceramics is dedicated to providing a forum of discussion cutting across issues in electrical, optical, and magnetic ceramics. Driven by the need for miniaturization, cost, and enhanced functionality, the field of electroceramics is growing rapidly in many new directions. The Journal encourages discussions of resultant trends concerning silicon-electroceramic integration, nanotechnology, ceramic-polymer composites, grain boundary and defect engineering, etc.