Structural, Magnetic, and Dielectric Properties of SrFe12O19-Ba0.85Ca0.15Ti0.9Zr0.1O3 Composites

IF 1.6 4区物理与天体物理 Q3 PHYSICS, APPLIED

Journal of Superconductivity and Novel Magnetism Pub Date : 2024-06-21 DOI:10.1007/s10948-024-06778-7

Anshu Gaur, Saarthak Dulgaj, Biswaranjan Sahu, S. Srinath

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Abstract

Structural, magnetic, and dielectric properties of \(x\)SrFe₁₂O₁₉-(1-\(x\))Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ multiferroic composite prepared by sintering the composite mixture of sol-gel synthesized SrFe₁₂O₁₉ (SrF) and Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ (BCTZ) are reported. Structural parameters (lattice parameter, bond length, and lattice strain) of parent phases in their pure and composite forms are correlated to indicate the lattice interaction between the two phases. The magnetic moment per gram of SrF (\({M}_{SrF}\)) in the composite is higher than that in the SrF, related to the changes in the Fe-O-Fe bond angles. The room temperature dielectric response of the composites in the 100 Hz–10 MHz frequency range is modeled by the Cole–Cole relaxation and Jonscher power law equations to mark the different contributions (ferroelectric dipoles, charge carriers).

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SrFe12O19-Ba0.85Ca0.15Ti0.9Zr0.1O3 复合材料的结构、磁性和介电特性

报告了通过烧结溶胶凝胶合成的SrFe12O19（SrF）和Ba0.85Ca0.15Ti0.9Zr0.1O3（BCTZ）的复合混合物制备的（1-\(x\)SrFe12O19-(1-\(x\))Ba0.85Ca0.15Ti0.9Zr0.1O3）多铁性复合材料的结构、磁性和介电性能。纯母体和复合母体的结构参数（晶格参数、键长和晶格应变）相互关联，以显示两种相之间的晶格相互作用。复合材料中每克 SrF 的磁矩（\({M}_{SrF}\)）高于 SrF，这与 Fe-O-Fe 键角的变化有关。复合材料在 100 Hz-10 MHz 频率范围内的室温介电响应是通过科尔-科尔弛豫方程和琼舍尔幂律方程来模拟的，以标记不同的贡献（铁电偶极子、电荷载流子）。

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来源期刊

Journal of Superconductivity and Novel Magnetism 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.10%

发文量

342

审稿时长

3.5 months

期刊介绍： The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.