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Magnetically tuned Ni0.3Co0.7DyxFe2–xO4 ferrites for high-density data storage applications

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Abstract

Dysprosium (Dy3+)-substituted Ni–Co nanoparticles were synthesized by sol–gel technique. Structural and morphological analyses were accomplished by X-ray diffraction (XRD), scanning electron microscopy (SEM) and field emission transmission electron microscopy (FE-TEM). The crystallite size and lattice parameter followed a decreasing trend up on increase in Dy3+ substitution for the concentration x ≤ 0.15, which is due to the hindrance in crystallite growth and deposition of Dy3+ on grain boundaries, respectively. The lattice strain was increased from 5.027 to 8.814 × \({10}^{-3}\) with enhancement in Dy3+ content. The morphological studies showed uniform distribution of particles with slight agglomeration and the average particle size was calculated to be 22.17 nm, which is in good agreement with XRD results. The magnetic studies were executed by vibrating sample magnetometer (VSM) over a wide range of applied magnetic field. The soft ferrimagnetic nature of these ferrites was revealed by narrow (M–H) curve. The magnetic parameters exhibited decreasing behavior upon increasing amount of substitution. The coercivity (Hc) was recorded to be 1097 Oe for x = 0.00 and saturation magnetization (Ms) was calculated in the range 27.04–40.86 emu/g. The anisotropy constant and magneton number were found to be in the range of 9887–46,703 erg/cm3 and 1.21–1.71 µB, respectively. These properties of prepared ferrites point towards their applicability in magnetic recording instruments, memory, and high-density data storage devices.

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Data availability

The data that support the findings of this study are available with us corresponding author, [ZA Gilani] and can be presented upon reasonable request.

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Acknowledgements

The authors thank Researchers Supporting Project Number (RSPD2024R699) King Saud University, Riyadh, Saudi Arabia for support.

Author information

Authors and Affiliations

  1. Department of Physics, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, 87300, Pakistan

    Furhaj Ahmed Sheikh, H. M. Noor ul Huda Khan Asghar, Zaheer Abbas Gilani & Noor-ul-Haq Khan

  2. Department of Physics, University of Karachi, Karachi, 75270, Pakistan

    Muhammad Khalid

  3. Department of Physics and Astronomy, College of Science, King Saud University, P.O. BOX 2455, 11451, Riyadh, Saudi Arabia

    Syed Mansoor Ali

  4. Department of Mechanical and Energy Systems Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP, UK

    Muhammad Ali Shar

  5. Department of Physics, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan

    Muhammad Yaqoob Khan

Authors
  1. Furhaj Ahmed Sheikh
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  2. H. M. Noor ul Huda Khan Asghar
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  3. Muhammad Khalid
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  4. Zaheer Abbas Gilani
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  5. Syed Mansoor Ali
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  6. Noor-ul-Haq Khan
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  7. Muhammad Ali Shar
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  8. Muhammad Yaqoob Khan
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Contributions

The role(s) of all the authors are listed as follows on the behalf of all the authors. FAS: conducting a research and investigation process, specifically performing the experiments, or data/evidence collection; preparation, creation and/or presentation of the published work, specifically writing the initial draft. HMNHKA: development or design of methodology; creation of models. MK: provision of study materials, instrumentation, and computing resources analysis tools. ZAG: ideas; formulation or evolution of overarching research goals and aims; verification, experiments and other research outputs; oversight and leadership responsibility for the research activity planning and execution, including mentorship external to the core team. SMA: management and coordination responsibility for the research activity planning and execution. N-u-HK: maintain research data (including software code, where it is necessary for interpreting the data itself) for initial use and later reuse. MAS: preparation, creation, specifically critical review, commentary, or revision—including pre- or post-publication stages. MYK: application of statistical, mathematical, computational, or other formal techniques to analyze or synthesize study data.

Corresponding authors

Correspondence to Zaheer Abbas Gilani or Syed Mansoor Ali.

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Sheikh, F.A., Asghar, H.M.N.u.H.K., Khalid, M. et al. Magnetically tuned Ni0.3Co0.7DyxFe2–xO4 ferrites for high-density data storage applications. Appl. Phys. A 130, 65 (2024). https://doi.org/10.1007/s00339-023-07224-6

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  • DOI: https://doi.org/10.1007/s00339-023-07224-6

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