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Critical Behavior and Theoretical Magnetocaloric Effect Calculation in Tb(Co0.94Fe0.06)2 Alloy

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Abstract

The critical behavior at the ferromagnetic paramagnetic phase transition in Tb(Co0.94Fe0.06)2 intermetallic alloy is studied using iteration method applied on modified Arrott plot. The exponent values were calculated to be as β = 0.549 and γ = 1.41. Since the critical β value is near to the one predicted by the mean field model, we suggested to exploit the mean field theory to analyze the magnetic and the magnetocaloric properties in Tb(Co0.94Fe0.06)2. The isothermal magnetization and the magnetic entropy change were generated using both methods: Arrott–Noakes equation of state and mean field model.

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Acknowledgements

The authors would like to thank the Deanship of Scientific Research at Umm Al-Qura University.

Funding

The authors would like to thank the Deanship of Scientific Research at Umm Al-Qura University for supporting this work by GRANT Code 22UQU4361156DSR05.

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Authors and Affiliations

  1. Laboratory of Physical Chemistry of Materials, Faculty of Science of Monastir, Department of Physics, University of Monastir, Monastir, 5019, Tunisia

    Mohamed Hsini & Abdessalem Dhahri

  2. College of Engineering, Al Qunfudha Umm Al-Qura University, Al Qunfudha, Kingdom of Saudi Arabia

    Issam El Gmati

  3. Higher School of Sciences and Technology of Hammam Sousse, Sousse, Tunisia

    Issam El Gmati

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  1. Mohamed Hsini
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  2. Issam El Gmati
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  3. Abdessalem Dhahri
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Correspondence to Mohamed Hsini or Issam El Gmati.

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Hsini, M., Gmati, I.E. & Dhahri, A. Critical Behavior and Theoretical Magnetocaloric Effect Calculation in Tb(Co0.94Fe0.06)2 Alloy. J Supercond Nov Magn 35, 2793–2798 (2022). https://doi.org/10.1007/s10948-022-06310-9

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