Magnetocaloric Effect in the Laves Phase of GdNi2 in Strong Magnetic Fields

A. P. Kamantsev; Каманцев А. П.; V. V. Koledov; Коледов В. В.; V. G. Shavrov; Шавров В. Г.; D. V. Plakhotskiy; Плахотский Д. В.; M. Yu. Bogush; Богуш М. Ю.; M. V. Utarbekova; Утарбекова М. В.; M. A. Orshulevich; Оршулевич М. А.

doi:10.31857/S0033849423040137

Magnetocaloric Effect in the Laves Phase of GdNi2 in Strong Magnetic Fields

Autores: Kamantsev A.P.¹, Koledov V.V.¹, Shavrov V.G.¹, Plakhotskiy D.V.², Bogush M.Y.², Utarbekova M.V.², Orshulevich M.A.²
Afiliações:
1. Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences
2. Chelyabinsk State University
Edição: Volume 68, Nº 4 (2023)
Páginas: 384-390
Seção: К 90-ЛЕТИЮ ВЛАДИМИРА ГРИГОРЬЕВИЧА ШАВРОВА
URL: https://rjsvd.com/0033-8494/article/view/650555
DOI: https://doi.org/10.31857/S0033849423040137
EDN: https://elibrary.ru/PFZESS
ID: 650555

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Resumo

Experimental studies of the magnetic and magnetocaloric properties of the Laves phase of GdNi2 have been carried out in external static up to 3 T and pulsed up to 50 T magnetic fields. It has been found that in a magnetic field of 3 T the change in the magnetic entropy of the alloy reaches its maximum value ΔSm = −8 J/(kg K) in the vicinity of the Curie temperature TC = 73.6 K. The corresponding adiabatic temperature change in this case, calculated by an indirect method, is ΔTad ≈ 3 K. The maximum value of the adiabatic temperature change measured by the direct method in a pulsed magnetic field of 50 T at T0 = 77 K, was equal to ΔTad = 15 K, which agrees well with theoretical predictions.

Palavras-chave

magnetic and magnetocaloric properties, Laves phase, Curie temperature

Bibliografia

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