Crystal structure, critical phenomena and magnetocaloric properties of Ni-substituted ferromagnetic Pr2Fe17 intermetallic compound around room temperature

Horcheni, J.; Nouri, K.; Dhahri, E.; Bessaïs, L.

doi:10.1016/j.jssc.2023.124219

Cited by 3 publications

(1 citation statement)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“….) [17][18][19][20][21][22] compounds have undergone extensive study over the past two decades, all with the overarching goal of improving both the magnitude and temperature range of MCE. Materials with ThMn 12 -type structure such as Nd(Fe, Mo) 12 , which have a maximum value of the change of magnetic entropy at µ 0 ∆H = 5 T (−∆S max M =2.38 J•kg −1 •K −1 ) [23], R(Fe, X) 12 (R = Nd, Sm and X = Ti, V) (−∆S max M = 1.6 J•kg −1 •K −1 at µ 0 ∆H = 1.5 T) [24], Gd(Fe, Cr) 12 (−∆S max M =1.82 J•kg −1 •K −1 , and RCP = 10.5 J•kg −1 at µ 0 ∆H = 1.5 T) [25], and Er(Fe, Mn) 12 (−∆S max M = 1.92 J•kg −1 •K −1 at µ 0 ∆H = 5 T) [26], have already demonstrated promising magnetocaloric properties, showcasing their potential for high-temperature magnetic refrigeration applications.…”

Section: Introductionmentioning

confidence: 99%

Exploring Crystal Structure, Hyperfine Parameters, and Magnetocaloric Effect in Iron-Rich Intermetallic Alloy with ThMn12-Type Structure: A Comprehensive Investigation Using Experimental and DFT Calculation

Horcheni,

Jaballah,

Dhahri

et al. 2023

Magnetochemistry

View full text Add to dashboard Cite

In this study, we give a thorough evaluation of the structural, magnetic, and magnetocaloric properties in iron-rich PrFe11Ti intermetallic alloy with ThMn12-type structure using a combination of experimental and theoretical analysis. X-ray diffraction coupled with Rietveld refinement was used to characterize the structure, which revealed a unique tetragonal crystal structure with I4/mmm space group. The 8i site was identified as the preferred site for the Ti atom. This finding was confirmed by various techniques, including XRD, DFT, and Mössbauer spectrometry. Magnetic properties were studied through intrinsic magnetic measurements and magnetocaloric effect analysis. Mössbauer spectroscopy was employed to probe the local magnetic environment and for further characterization of the material’s magnetic properties. The experimental results were complemented by theoretical calculations based on density functional theory (DFT). A promising magnetocaloric effect is observed, with a significant maximum magnetic entropy (−ΔSMmax = 2.5 J·kg−1·K−1) and a relative cooling power about 70 J·kg−1 under low magnetic field change μ0ΔH = 1.5 T. Overall, our results provide a deeper understanding of the structural and magnetic properties of the material under study and demonstrate the effectiveness of the combined experimental and theoretical approach in the investigation of complex materials. The insights gained from this study could have implications for the development of advanced magnetic materials with enhanced properties for potential magnetic applications.

show abstract