Impact of cobalt doping on the properties of zinc ferrite (CoxZn1-xFe2O4)

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2025-05-06 DOI:10.1007/s10854-025-14770-7

Muhammad Numan Nawaz, Uzma Ghazanfar, Weifeng Yuan, Hassan Wahab, Osama Tariq Satti, Sadaf Bashir Khan

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Abstract

The intercalation of Cobalt (Co) into Zinc (Zn) ferrite (Fe₂O₄₎ is a contemporary composite material with significant magnetic and structural characteristics. Our study investigates the Mössbauer, structural, and magnetic properties of Co-substituted ZnFe₂O₄, synthesized via microwave hydrothermal method. A series of polycrystalline samples were prepared by modulating the cobalt concentration (0.1, 0.4, 0.7, and 0.9) in zinc ferrite. We discovered a profound impact on lattice parameters and magnetization. Scanning electron microscopy (SEM) shows a uniform surface morphology with an accumulation of particles, including particle clustering. The X-ray diffraction (XRD) data confirm the single-phase cubic spinal structure. No additional impurities or subordinate phases were detected. UV-visible spectra show a slight shift in Co-doped ZnFe₂O₄ samples (2.60eV to 2.30eV) in optical bandgap with the increment of cobalt due to generating extra energy state. Fourier transform infrared (FTIR) spectroscopy is used to identiy functional group bending modes at specific wavelengths. Mössbauer spectroscopy analysis confirms the presence of cations that selectively inhabit a particular site of lattice, indicative of the preferential distribution of these ions within the crystal structure. Incorporating cobalt ions through doping significantly affects the material behavior, leading to changes in magnetic susceptibility, optical absorption spectra, and electrical conductivity.

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钴掺杂对铁酸锌（CoxZn1-xFe2O4）性能的影响

钴（Co）嵌入锌（Zn）铁氧体（Fe2O4）是一种具有显著磁性和结构特征的当代复合材料。本文研究了微波水热法合成的共取代ZnFe2O4的Mössbauer、结构和磁性能。通过调节铁酸锌中钴的浓度（0.1、0.4、0.7和0.9），制备了一系列多晶样品。我们发现了对晶格参数和磁化的深远影响。扫描电子显微镜（SEM）显示均匀的表面形貌，颗粒聚集，包括颗粒簇。x射线衍射（XRD）数据证实了单相立方脊结构。没有检测到额外的杂质或从属相。紫外可见光谱显示，共掺杂ZnFe2O4样品（从2.60eV到2.30eV）的光学带隙随着钴的增加而发生轻微的位移，这是由于产生了额外的能态。傅里叶变换红外光谱（FTIR）用于识别特定波长的官能团弯曲模式。Mössbauer光谱分析证实了阳离子的存在，这些阳离子选择性地居住在晶格的特定位置，表明这些离子在晶体结构中的优先分布。掺杂钴离子会显著影响材料的性能，导致磁化率、光吸收光谱和电导率的变化。

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 Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.