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Nanotechnology

Erbium Substituted Nickel-Cobalt Spinel Ferrite Nanoparticles Show Promising Characteristics for Advanced Technological Devices

Strategic Insights

— 1 min read

Research from Islamia University Bahawalpur has led to the development of erbium substituted nickel-cobalt spinel ferrite nanoparticles, which have exhibited impressive characteristics for potential use in various advanced technological devices. The synthesized nanoparticles demonstrated improved magnetic and dielectric properties, as well as reduced resistivity values, making them suitable for applications such as microwave and recording devices fabrication.

Key Takeaways:

  • The study reported the effective synthesis of erbium substituted nickel-cobalt spinel ferrite nanoparticles via surfactant-assisted co-precipitation route.
  • X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) confirmed the face-centered (FCC) spinel structure of the synthesized nanoparticles.
  • The lattice constant showed deviations with the variation in size of the guest (Er3+) and host (Fe3+) cations.
  • I-V measurements revealed a significant decrease in resistivity values from 6.20 x 10^7 Omega cm to 0.03 x 10^7 Omega cm with increased Er3+ contents.
  • Saturation magnetization increased from 35.99 to 39.95 emu/g, suggesting the potential use of these ferrites in practical applications.
  • The magnetic and dielectric properties of nickel-cobalt ferrite nanoparticles showed improvement upon Er3+ substitution, indicating their potential for use in advanced technological devices.
  • The research has been peer-reviewed and published in the journal Ceramics International.
  • Authors include Muhammad Farooq Warsi, Islamia University Bahawalpur, Ayesha Iftikhar, Muhammad Asif Yousuf, Sheraz Yousaf, Muhammad Ilyas Sarwar, Sajjad Haider, Mohamed F. Aly Aboud, Imran Shakir and Sonia Zulfiqar.
  • Financial support for the research includes the Higher Education Commission of Pakistan, King Saud University, and the American University in Cairo (AUC).

Statistics:

  • Resistivity values decreased from 6.20 x 10^7 Omega cm to 0.03 x 10^7 Omega cm with increased Er3+ contents.
  • Saturation magnetization increased from 35.99 to 39.95 emu/g.
  • Lattice constant showed deviations with the variation in size of the guest (Er3+) and host (Fe3+) cations.

Sources:

  • NewsRx. Findings from Islamia University Bahawalpur Update Knowledge of Nanoparticles (Erbium Substituted Nickel-cobalt Spinel Ferrite Nanoparticles: Tailoring the Structural, Magnetic and Electrical Parameters). Nanotechnology Weekly. October 19, 2020; p 740.
  • Erbium Substituted Nickel-cobalt Spinel Ferrite Nanoparticles: Tailoring the Structural, Magnetic and Electrical Parameters. Ceramics International, 2020;46(15):24194-24203.

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