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<p>The structural, electrical, and magnetic properties of (1-x) ZnFe<sub>2</sub>O<sub>4</sub> - (x) BaTiO<sub>3</sub> (x = 0, 0.05, 0.10, 1) were systematically studied. Samples were synthesized using the sol-gel auto-combustion method for x = 0 and the conventional ceramic route for x = 0.05, 0.10, and 1. Phase formation was confirmed via X-ray diffraction (XRD), while Raman spectroscopy provided insights into vibrational and rotational modes. Field-emission scanning electron microscopy (FESEM) was used to analyze morphology. X-ray photoelectron spectroscopy (XPS) verified the oxidation states of Ti, Fe, and O, confirming the presence of Ti and Fe in multivalent states. Electrical studies revealed negative permittivity in Zinc ferrite-containing samples, well-explained by Drude-Lorentz theory. Magnetic properties were investigated through temperature-dependent magnetization measurements in ZFCW, FCC, and FCW modes, while M-H loops provided insights into saturation magnetization (M<sub>s</sub>), remanence (M<sub>r</sub>), and coercivity (H<sub>c</sub>), all of which increased with decreasing temperature. These findings highlight the potential of these metamaterials for electromagnetic interference (EMI) shielding and coil-less inductor applications.</p>

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Structural, electrical, and magnetic properties of (1-x) ZnFe2O4 - (x) BaTiO3 (x = 0,0.05,0.10,1) system

  • 期刊论文

  • 发表日期：

    2025年6月3日

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  • Harshpreet Cheema,
  • Parvej Ahmad Alvi,
  • Jaidev Tanwar,
  • Pallavi Kushwaha,
  • S. N. Jha,
  • Shilpa Tripathi,
  • Upendra Kumar

摘要

The structural, electrical, and magnetic properties of (1-x) ZnFe2O4 - (x) BaTiO3 (x = 0, 0.05, 0.10, 1) were systematically studied. Samples were synthesized using the sol-gel auto-combustion method for x = 0 and the conventional ceramic route for x = 0.05, 0.10, and 1. Phase formation was confirmed via X-ray diffraction (XRD), while Raman spectroscopy provided insights into vibrational and rotational modes. Field-emission scanning electron microscopy (FESEM) was used to analyze morphology. X-ray photoelectron spectroscopy (XPS) verified the oxidation states of Ti, Fe, and O, confirming the presence of Ti and Fe in multivalent states. Electrical studies revealed negative permittivity in Zinc ferrite-containing samples, well-explained by Drude-Lorentz theory. Magnetic properties were investigated through temperature-dependent magnetization measurements in ZFCW, FCC, and FCW modes, while M-H loops provided insights into saturation magnetization (Ms), remanence (Mr), and coercivity (Hc), all of which increased with decreasing temperature. These findings highlight the potential of these metamaterials for electromagnetic interference (EMI) shielding and coil-less inductor applications.