Microstructure and electromagnetic properties of Ca–V co-doped YIG ferrite with narrow ferromagnetic resonance linewidth

IF 3.8 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2025-09-01 DOI:10.1111/jace.70203

Yuhan Yang, Rongdi Guo, Guohua Wu, Zhongqiang Hu, Ming Liu

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Abstract

Yttrium iron garnet (YIG) ferrites play a crucial role in microwave devices due to their tunable saturation magnetization and narrow ferromagnetic resonance (FMR) linewidth. In this study, we successfully synthesized Ca–V co-doped Y_2.7−2_xCa_0.3+2_xFe_4.7−_xZr_0.3V_xO₁₂ (0.00 ≤ x ≤ 0.35, ∆x = 0.07) ferrite and conducted an in-depth investigation into its microstructure and electromagnetic properties. The findings indicate that moderate ionic substitution can effectively reduce the porosity and FMR linewidth while enhancing the saturation magnetization and resistivity. In particular, the occupation rate of cation sites was comprehensively analyzed, and the separation of the FMR linewidth was calculated. At a substitution level of x = 0.07, the YIG ferrite exhibits excellent comprehensive performance, where the sample has a bulk density of 4.968 ± 0.011 g/cm³, a saturation magnetization of 1932 Gs, an FMR linewidth of 28.80 ± 1.25 Oe, a coercivity of 2.24 Oe, and a DC resistivity of (3.50 ± 0.37) × 10⁶ Ω•m. The Ca–V co-doped CaZr-YIG ferrite exhibits not only superior overall performance but also considerable potential for integration into microwave component design.

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窄铁磁共振线宽Ca-V共掺YIG铁氧体的微观结构和电磁性能

钇铁石榴石（YIG）铁氧体由于其可调的饱和磁化强度和窄的铁磁共振（FMR）线宽在微波器件中起着至关重要的作用。本研究成功合成了Ca-V共掺杂的Y2.7−2xCa0.3+2xFe4.7−xZr0.3VxO12（0.00≤x≤0.35,∆x = 0.07）铁氧体，并对其微观结构和电磁性能进行了深入研究。结果表明，适度的离子取代可以有效地降低孔隙率和FMR线宽，同时提高饱和磁化强度和电阻率。特别是对阳离子位点的占用率进行了综合分析，并对FMR线宽的分离进行了计算。当取代水平为x = 0.07时，yeg铁氧体的堆积密度为4.968±0.011 g/cm3，饱和磁化强度为1932 g， FMR线宽为28.80±1.25 Oe，矫顽力为2.24 Oe，直流电阻率为（3.50±0.37）× 106 Ω•m。Ca-V共掺杂CaZr-YIG铁氧体不仅具有优异的综合性能，而且在微波元件设计中具有相当大的集成潜力。

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.