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Investigation of dielectric properties, impedance and AC conductivity of Sm2O3@SiO2 core shell nanocomposites

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Abstract

In this study, we design and fabricate Sm2O3@SiO2 core–shell nanocomposites to examine their dielectric behavior under varying frequencies and temperatures. Powder X-ray diffraction and Fourier Transform-Infrared analyses confirmed the phase composition and functional groups, respectively, while Transmission Electron Microscopy analysis indicated the formation of core–shell structure with shell thickness of approximately 34 nm. The M-H hysteresis loop revealed a soft paramagnetic nature at room temperature. X-ray photoemission spectroscopy confirmed the chemical states and cation distribution in the material. The dielectric constant and dielectric loss exhibited an increasing trend when temperature was increased from 323 and 673 K in the observed frequency range.

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Acknowledgements

We sincerely thank the Board of Management at Sacred Heart College (Autonomous), Tirupattur, India, for granting Fr. Carreno Research Grant [Sanction number: SHC/Fr. Carreno Research Grant/2021/05]. We also thank DST-FIST, Government of India, for providing Powder XRD facility in AKRC, Sacred Heart College (Autonomous), Tirupattur.

Funding

Funding was provided by Fr. Carreno Research Grant (Grant No. SHC/Fr. Carreno Research Grant/2021/05).

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Authors and Affiliations

  1. Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, India

    S. Divya, S. Cathrin Lims & M. Jose

  2. Department of Physics, Pachaiyappa’s College, Chennai, 600030, India

    T. Arumanayagam

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  1. S. Divya
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  2. S. Cathrin Lims
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  3. T. Arumanayagam
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Contributions

MJ: Conceptualization; Investigation; Project administration; Supervision; Validation; Writing—review and editing. SD: Investigation; Methodology; Validation; Writing—original draft. SCL: Investigation; Methodology; Data curation; Visualization. TA: Validation; Visualization.

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Correspondence to M. Jose.

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Divya, S., Lims, S.C., Arumanayagam, T. et al. Investigation of dielectric properties, impedance and AC conductivity of Sm2O3@SiO2 core shell nanocomposites. J Mater Sci: Mater Electron 35, 67 (2024). https://doi.org/10.1007/s10854-023-11784-x

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