Investigation of magnetocapacitance and magnetoconductivity in single-phase Y-Type hexaferrite Ba2Co2Fe12O22 nanoparticles

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces Pub Date : 2024-09-23 DOI:10.1016/j.surfin.2024.105162

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Abstract

This research paper examines the synthesis and characterization of Y-type hexaferrite Ba₂Co₂Fe₁₂O₂₂ nanoparticles produced using the sol-gel method. The study explores their structural, magnetic, and electrical properties, confirming the successful synthesis of pure-phase hexaferrites with a hexagonal structure at an annealing temperature of 1150 °C. Morphological analysis reveals changes in nanoparticle diameter based on varying annealing temperatures. The Ba₂Co₂Fe₁₂O₂₂ nanoparticles display soft ferrimagnetism, achieving a peak saturation magnetization of 52.31 emu/g at 1150 °C, along with notable magnetocrystalline anisotropy and anisotropy field. Investigations on magnetocapacitance and magnetoconductivity under magnetic fields revealed improved performance, with high magnetocapacitance (MC%) and magnetoconductivity (Mσ_AC%) percentages of 24 % and 21 %, respectively. This suggests the potential utility of these nanoparticles in applications such as permanent magnets, magnetic recording media, and spintronic devices.

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单相 Y 型六铁 Ba2Co2Fe12O22 纳米粒子的磁电容和磁导率研究

本研究论文探讨了利用溶胶-凝胶法生产的 Y 型六方铁氧体 Ba2Co2Fe12O22 纳米粒子的合成和特性。研究探讨了它们的结构、磁性和电性，证实了在 1150 °C 退火温度下成功合成了具有六边形结构的纯相六方铁氧体。形态分析表明，不同的退火温度会导致纳米粒子直径发生变化。Ba2Co2Fe12O22 纳米粒子显示出软铁磁性，在 1150 ℃ 时达到 52.31 emu/g 的饱和磁化峰值，同时具有显著的磁晶各向异性和各向异性场。对磁场下的磁电容和磁导率的研究表明，这种纳米材料的性能有所提高，磁电容（MC%）和磁导率（MσAC%）分别达到 24% 和 21%。这表明这些纳米粒子在永磁体、磁记录介质和自旋电子器件等应用中具有潜在的实用性。

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来源期刊

Surfaces and Interfaces Chemistry-General Chemistry

CiteScore

8.50

自引率

6.50%

发文量

753

审稿时长

35 days

期刊介绍： The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results. Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)