Structural and Magnetic Properties and Magnetocaloric Effect in SmNi<sub>5</sub> Compound

Bajorek, A.; Łopadczak, Paweł

doi:10.1109/tmag.2018.2868251

Cited by 2 publications

(2 citation statements)

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“…The Sm3d spectra reveal splitting due to a spin–orbit interaction of ΔE = 26.7 eV into 3d 5/2 (BE ≈ 1082.6eV) and 3d 3/2 (BE ≈ 1109.3 eV) lines. Such parameters are typical for metallic Sm 3+ [ 68 , 69 , 70 , 71 ]. Nonetheless, below the main line, one may observe additional components visible as a shoulder with lower binging energy and lower intensity at BE ≈ 1076.1 and ≈ 1103.3 eV, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, the Sm3d spectrum consists of two components related to Sm 3+ and Sm 2+ . The divalent Sm3d 5/2 component associated with the 4f 6 configuration is usually observed between 1070.0 and 1080.0 eV and the trivalent Sm3d 5/2 (4f 5 ) component is usually observed between 1080.0 and 1090.0 eV [ 68 , 69 , 70 , 71 ]. We do not observe any noticeable variation in or sifting of samarium lines versus the milling time.…”

Section: Resultsmentioning

confidence: 99%

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Correlation between Microstructure and Magnetism in Ball-Milled SmCo5/α-Fe (5%wt. α-Fe) Nanocomposite Magnets

et al. 2021

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Magnetic nanocomposites SmCo5/α-Fe were synthesized mechanically by high-energy ball milling (HEBM) from SmCo5 and 5%wt. of α-Fe powders. The X-ray diffraction analysis reveals the hexagonal 1:5 phase as the main one accompanied by the cubic α-Fe phase and 2:17 rhombohedral as the secondary phase. The content of each detected phase is modified throughout the synthesis duration. A significant decrease in crystallite size with a simultaneous increase in lattice straining is observed. A simultaneous gradual reduction in particle size is noted from the microstructural analysis. Magnetic properties reveal non-linear modification of magnetic parameters associated with the strength of the exchange coupling induced by various duration times of mechanical synthesis. The highest value of the maximum energy product (BH)max at room temperature is estimated for samples milled for 1 and 6 h. The intermediate mixed-valence state of Sm ions is confirmed by electronic structure analysis. An increase in the Co magnetic moment versus the milling time is evidenced based on the performed fitting of the Co3s core level lines.

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Section: Resultsmentioning

confidence: 99%