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<p>The Cd<sub>0.35</sub>Zn<sub>0.65</sub>Ce<sub>0.03</sub>Fe<sub>1.97</sub>O<sub>4</sub> (CZCF)/Graphene nanoplatelets (GNPs) composites were synthesized using a self-combustion method by following the bath sonication. A cubic spinel phase was confirmed by X-ray diffraction (XRD), and the lattice constant lies within the range of 8.422–8.731&#xa0;Å. The crystallite size was increased from 20.3 to 34&#xa0;nm. Raman analysis confirmed the existence of characteristic vibrational modes of the spinel phase, and the presence of GNPs was also confirmed by the appearance of additional <i>D</i>-band at ~ 1320&#xa0;cm⁻<sup>1</sup> and <i>G</i>-band at ~ 1582&#xa0;cm⁻<sup>1</sup>. Morphological analysis shows the irregular shape and increased agglomeration with the addition of GNPs. The electrical resistivity study demonstrated semiconductor behavior of CZCF/GNPs composites. The tangent loss decreased with increasing frequency, and the CZCF/5wt%GNPs composite has the minimum tangent loss. The saturation magnetization (<i>M</i><sub>S</sub>) varied significantly with GNPs addition, and has a maximum of 36.84 emu g<sup>−1</sup> for the CZCF/5wt%GNPs sample. The remanent magnetization (<i>M</i><sub>r</sub>) and squareness ratio (SQ) showed non-linear behavior, indicating changes in magnetic domain structure. The coercivity (<i>H</i><sub>C</sub>) decreased initially with GNPs addition and has a minimum of 33.32 Oe at 5wt%GNPs, suggesting a soft magnetic nature. These results demonstrate the tunability of composites based on CZCF SFs through GNPs integration, which makes them an attractive candidate for potential applications.</p>

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Facile synthesis of Cd0.35Zn0.65Ce0.03Fe1.97O4/GNPs composites and their magneto-dielectric response

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • Enam-ul- Haq,
  • Muhammad Imran Arshad,
  • Nasir Amin

摘要

The Cd0.35Zn0.65Ce0.03Fe1.97O4 (CZCF)/Graphene nanoplatelets (GNPs) composites were synthesized using a self-combustion method by following the bath sonication. A cubic spinel phase was confirmed by X-ray diffraction (XRD), and the lattice constant lies within the range of 8.422–8.731 Å. The crystallite size was increased from 20.3 to 34 nm. Raman analysis confirmed the existence of characteristic vibrational modes of the spinel phase, and the presence of GNPs was also confirmed by the appearance of additional D-band at ~ 1320 cm⁻1 and G-band at ~ 1582 cm⁻1. Morphological analysis shows the irregular shape and increased agglomeration with the addition of GNPs. The electrical resistivity study demonstrated semiconductor behavior of CZCF/GNPs composites. The tangent loss decreased with increasing frequency, and the CZCF/5wt%GNPs composite has the minimum tangent loss. The saturation magnetization (MS) varied significantly with GNPs addition, and has a maximum of 36.84 emu g−1 for the CZCF/5wt%GNPs sample. The remanent magnetization (Mr) and squareness ratio (SQ) showed non-linear behavior, indicating changes in magnetic domain structure. The coercivity (HC) decreased initially with GNPs addition and has a minimum of 33.32 Oe at 5wt%GNPs, suggesting a soft magnetic nature. These results demonstrate the tunability of composites based on CZCF SFs through GNPs integration, which makes them an attractive candidate for potential applications.