Structure and magnetodielectric properties of HDPE/GaFeO3 composites

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2025-06-13 DOI:10.1016/j.solidstatesciences.2025.108010

Zamzama Rahmany, C.K. Divya Krishnan, S. Savitha Pillai

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引用次数: 0

Abstract

We studied the structure and magnetoelectric properties of HDPE/GFO composites with different GFO weight percentages. The XRD pattern of HDPE was indexed with orthorhombic structure space group Pnam, and the XRD pattern of GFO matches the Trigonal structure space group

R \overline{3} c

. The XRD pattern of composites shows the presence of both phases. Raman and IR studies confirmed the presence of functional group absorption bands corresponding to HDPE and GFO in the composite system. Structural analysis confirms that nanoparticle agglomeration within the matrix is likely to occur at filler concentrations above 5 %. GFO nanoparticle incorporation is confirmed from fractured micrographs of SEM images. The field-dependant magnetization data show a clear hysteresis loop at room temperature, indicating weak ferrimagnetic properties for composite samples, the maximum magnetic moment observed for 5 % filler concentration. The frequency-dependent dielectric constant increases with an increase in filler content. Ferroelectric data confirms the room temperature ferroelectricity in the composite samples and polarization increases with filler loading. Magnetodielectric studies confirmed the presence of a coupling between the magnetic and dielectric properties of the composite.

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HDPE/GaFeO3复合材料的结构和磁介电性能

研究了不同GFO掺量的HDPE/GFO复合材料的结构和磁电性能。HDPE的XRD谱图用正交结构空间群Pnam索引，GFO的XRD谱图用三角形结构空间群R3 - c索引。复合材料的XRD谱图显示了两相的存在。拉曼和红外研究证实了复合体系中存在HDPE和GFO对应的官能团吸收带。结构分析证实，当填料浓度高于5%时，纳米颗粒在基体内可能发生团聚。GFO纳米颗粒的掺入从断裂的电镜图像中得到证实。磁场相关磁化数据在室温下显示出明显的磁滞回线，表明复合材料具有弱铁磁特性，填料浓度为5%时观察到最大磁矩。频率相关介电常数随填料含量的增加而增加。铁电性数据证实了复合材料样品的室温铁电性，并且极化随填料的加入而增加。磁介电研究证实了复合材料的磁性和介电特性之间存在耦合。

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.