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Study of Morphological, Optical and Microwave Properties of Strontium-Doped Cobalt Ferrites

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Abstract

This work presents the effect of structural variation of strontium cobalt iron oxide on the electromagnetic properties for potential use of a perovskite structure in microwave applications. Various grades of strontium cobalt iron oxides were synthesized with varying concentration of Sr2+ and Co2+ using a sol–gel auto combustion route. X-ray diffraction confirmed the structural variation from cubic spinel (Fd-3m) to cubic primitive (Pm-3m) and finally to a perovskite structure. Electromagnetic properties were investigated using a vector network analyzer over a broad frequency range of 1–18 GHz. It was found that structural transition from spinel to perovskite resulted in a considerable increase in permittivity, together with significant decrease in permeability. Electromagnetic response and reflection loss indicates that the proposed composition is a suitable substrate material for miniaturized antenna applications.

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Authors and Affiliations

  1. Micro-mm Wave Laboratory (M2L), Department of Physics, COMSATS University Islamabad, Lahore Campus, Defence Road off Raiwind, Lahore, Pakistan

    Amna Mir, Mohammad Qadeer, Rana Waqas & Salman Naeem Khan

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  1. Amna Mir
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  2. Mohammad Qadeer
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  3. Rana Waqas
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  4. Salman Naeem Khan
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Correspondence to Salman Naeem Khan.

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Mir, A., Qadeer, M., Waqas, R. et al. Study of Morphological, Optical and Microwave Properties of Strontium-Doped Cobalt Ferrites. J. Electron. Mater. 49, 4801–4808 (2020). https://doi.org/10.1007/s11664-020-08212-9

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  • DOI: https://doi.org/10.1007/s11664-020-08212-9

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