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Magnetocaloric Effect in Rare-Earth Magnets

  • ELECTRICAL AND MAGNETIC PROPERTIES
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Abstract

The paper presents a comparative study of the magnetocaloric characteristics of rare-earth magnets. Both hydrogen containing systems Gd–H, (Gd,R)Ni–H (R is a rare-earth metal) and RCo2–H with a Laves phase structure and systems without hydrogen, such as layered magnets with the general formula RTX (T = Mn, Fe, Co; X = Si), are studied, as well as compounds of the type R2(Fe,T)17 (T = Al), which have a magnetic compensation point and exhibit an alternating magnetocaloric effect (MCE). The MCE was measured directly and indirectly from the analysis of the field dependences of magnetization. The main regularities and specific features of the formation of magnetocaloric properties of materials depending on their composition and structure have been revealed.

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Funding

This work was supported by the Russian Science Foundation (project no. 22-29-00773, https://rscf.ru/project/22-29-00773/), Lomonosov Moscow State University.

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  1. Faculty of Physics, Lomonosov Moscow State University, 119992, Moscow, Russia

    N. Yu. Pankratov, I. S. Tereshina & S. A. Nikitin

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  1. N. Yu. Pankratov
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Correspondence to N. Yu. Pankratov.

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Translated by E. Chernokozhin

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Pankratov, N.Y., Tereshina, I.S. & Nikitin, S.A. Magnetocaloric Effect in Rare-Earth Magnets. Phys. Metals Metallogr. 124, 1139–1146 (2023). https://doi.org/10.1134/S0031918X23601841

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