Multifaceted Analysis of Pr2Fe16.75Ni0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature

Horcheni, Jihed; Jaballah, Hamdi; Gharbi, Sirine; Dhahri, Essebti; Bessais, Lotfi

doi:10.3390/magnetochemistry11080065

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Multifaceted Analysis of Pr₂Fe_16.75Ni_0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature

by

Jihed Horcheni

^1,2,*

,

Hamdi Jaballah

¹,

Sirine Gharbi

²,

Essebti Dhahri

² and

Lotfi Bessais

¹

University Paris Est Créteil, CNRS, ICMPE, UMR 7182, 2 rue Henri Dunant, F-94320 Thiais, France

²

Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, Sfax 3000, Tunisia

^*

Author to whom correspondence should be addressed.

Magnetochemistry 2025, 11(8), 65; https://doi.org/10.3390/magnetochemistry11080065 (registering DOI)

Submission received: 27 May 2025 / Revised: 19 July 2025 / Accepted: 24 July 2025 / Published: 31 July 2025

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Abstract

The alloy Pr

_{2}

Fe

_{16.75}

Ni

_{0.25}

has been examined to investigate its structural properties, critical behavior, and magnetocaloric effects. Rietveld’s refinement of X-ray diffraction patterns has revealed a rhombohedral structure with an

R \bar{3} m

space group. Pr

_{2}

Fe

_{16.9}

Ni

_{0.25}

also demonstrates a direct magnetocaloric effect near room temperature, accompanied by a moderate magnetic entropy change (

- Δ S_{M}^{\max}

= 5.5 J kg

^{- 1}

K

^{- 1}

at

μ_{0} Δ H = 5

T) and a broad working temperature range. Furthermore, the Relative Cooling Power (RCP) is approximately 89% of the widely recognized gadolinium (Gd) for

μ_{0} Δ H = 2

T. This compound exhibits a commendable magnetocaloric response, on par with or even surpassing that of numerous other intermetallic alloys. Critical behavior was analyzed using thermo-magnetic measurements, employing methods such as the modified Arrott plot, critical isotherm analysis, and Kouvel-Fisher techniques. The obtained critical exponents (

β

,

γ

, and

δ

) exhibit similarities to those of the 3D-Ising model, characterized explicitly by intermediate range interactions.

Keywords: intermetallic compounds; refined XRD; magnetic materials; critical behavior; magnetocaloric effect

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MDPI and ACS Style

Horcheni, J.; Jaballah, H.; Gharbi, S.; Dhahri, E.; Bessais, L. Multifaceted Analysis of Pr₂Fe_16.75Ni_0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature. Magnetochemistry 2025, 11, 65. https://doi.org/10.3390/magnetochemistry11080065

AMA Style

Horcheni J, Jaballah H, Gharbi S, Dhahri E, Bessais L. Multifaceted Analysis of Pr₂Fe_16.75Ni_0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature. Magnetochemistry. 2025; 11(8):65. https://doi.org/10.3390/magnetochemistry11080065

Chicago/Turabian Style

Horcheni, Jihed, Hamdi Jaballah, Sirine Gharbi, Essebti Dhahri, and Lotfi Bessais. 2025. "Multifaceted Analysis of Pr₂Fe_16.75Ni_0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature" Magnetochemistry 11, no. 8: 65. https://doi.org/10.3390/magnetochemistry11080065

APA Style

Horcheni, J., Jaballah, H., Gharbi, S., Dhahri, E., & Bessais, L. (2025). Multifaceted Analysis of Pr₂Fe_16.75Ni_0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature. Magnetochemistry, 11(8), 65. https://doi.org/10.3390/magnetochemistry11080065

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Multifaceted Analysis of Pr₂Fe_16.75Ni_0.25 Intermetallic Compound: Crystallographic Insights, Critical Phenomena, and Thermomagnetic Behavior Near Room Temperature

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