Manganese doped cobalt–nickel spinel ferrite via. sol–gel approach: Insight into structural, morphological, magnetic, and dielectric properties

IF 0.7 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

International Journal of Materials Research Pub Date : 2023-08-03 DOI:10.1557/s43578-023-01119-1

K. Kaur, Hamnesh Mahajan, Anjori Sharma, Ibrahim Mohammaed, A. K. Srivastava, D. Basandrai

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Abstract

The structural, morphological, magnetic, and dielectric properties of MnxCo0.5-xNi0.5Fe2O4 (x = 0.0, 0.2, and 0.4) synthesized by sol–gel auto-combustion are reported in this paper. X-ray diffraction pattern of the samples confirms the formation of a single-phase spinel ferrite and the crystallite size (D) is in the range of 32.60–33.62 nm. Fourier transform infrared spectra have a vibrational band at 534.20 cm−1 and 420.13 cm−1 which corresponds to the tetrahedral and octahedral sites of the MnxCo0.5-xNi0.5Fe2O4 respectively. Field emission scanning electron microscope reveals the cubic morphology of the synthesized spinel ferrite with inhomogeneous grain size. Vibrating sample magnetometer analysis showed the ferromagnetic nature of all samples. All the samples exhibit a multi-domain because the value of Mr/Ms lies in the range of 0.153–0.336. Dielectric properties reveal the hopping of the charge carrier which has improved the conduction mechanism of the MnxCo0.5-xNi0.5Fe2O4.

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锰掺杂钴镍尖晶石铁氧体。溶胶-凝胶法:洞察结构、形态、磁性和介电性质

本文报道了溶胶-凝胶自燃烧法制备的MnxCo0.5-xNi0.5Fe2O4 (x = 0.0, 0.2, 0.4)的结构、形貌、磁性和介电性能。样品的x射线衍射图证实形成了单相尖晶石铁素体，晶粒尺寸(D)在32.60 ~ 33.62 nm之间。傅里叶变换红外光谱在534.20 cm−1和420.13 cm−1处有一个振动带，分别对应MnxCo0.5-xNi0.5Fe2O4的四面体和八面体位置。场发射扫描电镜观察了合成的尖晶石铁素体的立方形貌，晶粒尺寸不均匀。振动样品磁强计分析表明所有样品都具有铁磁性。由于Mr/Ms的取值范围在0.153-0.336之间，所有的样本都表现出多域。MnxCo0.5-xNi0.5Fe2O4的介电性能表明载流子的跳变改善了其导电机制。

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来源期刊

International Journal of Materials Research 工程技术-冶金工程

CiteScore

1.30

自引率

12.50%

发文量

119

审稿时长

6.4 months

期刊介绍： The International Journal of Materials Research (IJMR) publishes original high quality experimental and theoretical papers and reviews on basic and applied research in the field of materials science and engineering, with focus on synthesis, processing, constitution, and properties of all classes of materials. Particular emphasis is placed on microstructural design, phase relations, computational thermodynamics, and kinetics at the nano to macro scale. Contributions may also focus on progress in advanced characterization techniques. All articles are subject to thorough, independent peer review.