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Tailoring the Structural and Electrical Properties of Ba–Zn–Co M-Type Hexaferrites by Lanthanum Substitution for High-Resistivity Applications

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Abstract

In this study, Ba0.5Zn0.2Co0.3Fe12-yLayO19 (y = 0, 0.1, 0.2, 0.3, 0.4, 0.5) nano-hexaferrites were prepared through the co-precipitation route. The synthesized powder was sintered at 1100 °C for 6 h to assist the crystallization process. The formation of single-phase hexagonal structure was confirmed by XRD. The size of prepared crystals of nano-hexaferrites was estimated in the range of 12.5–28.1 nm. The FTIR spectra also confirmed the formation of M-type hexagonal phase with the characteristic band of hexagonal structure observed at about 560 cm−1. The current voltage measurements were performed to study the electrical nature of prepared samples in the temperature range 300–900 K. At room temperature, the highest values 2 × 1011 Ω cm and 0.5 eV of electrical resistivity and activation energy, respectively, are found for the sample with La concentration y = 0.2. The enhanced dc electrical resistivity due to La substitution shows that the synthesized hexaferrites are efficient to reduce the eddy current losses for device fabrication in the high-frequency range.

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Funding

The Government College University, Faisalabad, Pakistan, provided the financial assistance for this research work.

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Authors and Affiliations

  1. Department of Physics, Government College University Faisalabad, Faisalabad, 38000, Pakistan

    M. Imran Arshad, S. Nadeem, N. Amin, Khalid Mahmood, M. Ramzan, S. Arshad & M. Ajaz-un-Nabi

  2. Institute of Functional Nano & Soft Materials, Soochow University, Suzhou, 215123, Jiangsu, China

    Aisha Bibi

Authors
  1. M. Imran Arshad
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  2. S. Nadeem
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  3. N. Amin
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  4. Khalid Mahmood
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  5. M. Ramzan
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  6. S. Arshad
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  7. Aisha Bibi
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  8. M. Ajaz-un-Nabi
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Correspondence to M. Ajaz-un-Nabi.

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Arshad, M.I., Nadeem, S., Amin, N. et al. Tailoring the Structural and Electrical Properties of Ba–Zn–Co M-Type Hexaferrites by Lanthanum Substitution for High-Resistivity Applications. J Supercond Nov Magn 34, 1807–1811 (2021). https://doi.org/10.1007/s10948-020-05750-5

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  • DOI: https://doi.org/10.1007/s10948-020-05750-5

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