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The magnetocaloric effect in hydrogen-doped Nd2Fe14B and Er2Fe14B intermetallic compounds

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Abstract

The nature of the magnetocaloric effect (MCE) in compounds R2Fe14B (R = Nd, Er) and their hydrides in a wide temperature range is investigated. The investigation is carried out on initial samples of a special purity including single-crystalline ones. The highest value of the magnetocaloric effect is established in the Curie-temperature region. The hydrogenation of samples affects the value of the MCE. The model explaining the dependence of the value and sign of the magnetocaloric effect on the hydrogen contents in R2Fe14B compounds with participation of erbium and neodymium is proposed.

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Authors and Affiliations

  1. Baikov Institute of Metallurgy and Material Science, Russian Academy of Sciences, Moscow, 119991, Russia

    G. S. Burkhanov, I. S. Tereshina, G. A. Politova & I. A. Pelevin

  2. Moscow State University, Moscow, 119991, Russia

    I. S. Tereshina

  3. International Laboratory of Strong Magnetic Fields and Low Temperatures, Polish Academy of Sciences, Wrocław, Poland

    I. S. Tereshina & Yu. S. Koshkidko

  4. Karlov University, 11636, Prague, Czech Republic

    M. A. Paukov

  5. Institute of Low Temperatures and Structural Research, Polish Academy of Sciences, Wrocław, Poland

    H. Drulis

Authors
  1. G. S. Burkhanov
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  2. I. S. Tereshina
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  3. G. A. Politova
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  4. I. A. Pelevin
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  5. Yu. S. Koshkidko
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  6. M. A. Paukov
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  7. H. Drulis
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Corresponding author

Correspondence to G. A. Politova.

Additional information

Original Russian Text © G.S. Burkhanov, I.S. Tereshina, G.A. Politova, I.A. Pelevin, Yu.S. Koshkidko, M.A. Paukov, H. Drulis, 2017, published in Doklady Akademii Nauk, 2017, Vol. 472, No. 3, pp. 268–271.

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Burkhanov, G.S., Tereshina, I.S., Politova, G.A. et al. The magnetocaloric effect in hydrogen-doped Nd2Fe14B and Er2Fe14B intermetallic compounds. Dokl. Phys. 62, 10–13 (2017). https://doi.org/10.1134/S1028335817010104

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  • DOI: https://doi.org/10.1134/S1028335817010104

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