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Correlation between the structure and thermomagnetic properties of pseudo-binary (Tb,Er)Ni.sub.2./sub. solid solutions
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SYSNO ASEP 0553360 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Correlation between the structure and thermomagnetic properties of pseudo-binary (Tb,Er)Ni2 solid solutions Author(s) Ćwik, J. (PL)
Koshkid'ko, Y. (PL)
Nenkov, K. (DE)
Tereshina-Chitrova, Evgenia (FZU-D) ORCID
Kolchugina, N. (RU)Number of authors 5 Article number 157870 Source Title Journal of Alloys and Compounds. - : Elsevier - ISSN 0925-8388
Roč. 859, Apr. (2021)Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords intermetallic compounds ; magnetic materials ; phase transition ; magnetocaloric effect ; Laves phase ; magnetic entropy change Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000614114500114 EID SCOPUS 85097087704 DOI 10.1016/j.jallcom.2020.157870 Annotation Magnetic and thermodynamic properties of the polycrystalline pseudo-binary Tb1-xErxNi2 (x = 0.25, 0.5, and 0.75) solid solutions are studied in accordance with the erbium substitution for terbium, which causes changing of the crystal structure. The Tb1-xErxNi2 solid solutions at room temperature were found to have the C15 Laves-phase superstructure rather than the C15 structure typical of the parent compounds, TbNi2 and ErNi2. The substitution of Er for Tb in Tb1-xErxNi2 decreases the ordering temperature, which corresponds to the second-order ferromagnet to paramagnet magnetic phase transition. The maximum magnetic entropy change of the Tb0·75Er0·25Ni2, Tb0·5Er0·5Ni2 and for Tb0·25Er0·75Ni2 compositions reaches 6.6 (12.7), 6.9 (13.8) and 7.5 (14.9) J/kgK for a magnetic field change of 2 (5) T, respectively. These pseudo-binary solid solutions show promise as materials for magnetic refrigerators operating within a specific low-temperature range. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.jallcom.2020.157870
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