Enhanced dielectric and magnetic properties of Sr and Co doped barium ferrite nanoparticles by microwave synthesis method

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-08-29 DOI:10.1016/j.matlet.2025.139405

Shraddha Agrawal , Azra Parveen , Naveen Kumar Arkoti , Jitendra Bahadur , Mohd Hashim , Sumit Gaur

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引用次数: 0

Abstract

The current study investigates the magnetic, electrical, and dielectric characteristics of barium ferrite nanoparticles doped with Sr and Co metals, produced using the microwave gel process. X-ray diffraction (XRD) was employed to analyze the crystalline phases of the prepared materials. The XRD data confirmed that the Sr and Co were successfully incorporated into the BaFe₁₂O₁₉. The dielectric permittivity and ac conductivity of pristine and doped BaFe₁₂O₁₉ nanoparticles have been measured as a function of frequency and temperature. Compared to pristine barium ferrites, Sr and Co-metal-doped barium ferrite nanoparticles exhibit stronger ferromagnetic behavior and increased magnetization. As Sr and Co metal-doped barium ferrite nanoparticles have improved magnetic and dielectric properties, they may be used in magnetic storage devices and absorbing materials, paving the way for exciting new applications in these fields.

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微波合成法增强Sr和Co掺杂钡铁氧体纳米粒子的介电和磁性能

目前的研究研究了掺杂锶和钴金属的钡铁氧体纳米颗粒的磁性、电学和介电特性，这些纳米颗粒是用微波凝胶法制备的。采用x射线衍射（XRD）对制备的材料进行了晶相分析。XRD数据证实了Sr和Co被成功地掺入到BaFe12O19中。测量了原始和掺杂的BaFe12O19纳米粒子的介电常数和交流电导率随频率和温度的变化。与原始的钡铁氧体相比，锶和钴金属掺杂的钡铁氧体纳米颗粒表现出更强的铁磁行为和更高的磁化强度。由于锶和钴金属掺杂的钡铁氧体纳米颗粒具有较好的磁性和介电性能，它们可以用于磁存储器件和磁吸收材料，为这些领域的新应用铺平了道路。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive