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Magnetocaloric effect in materials with the first order transitions - direct measurements
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SYSNO ASEP 0355672 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Magnetocaloric effect in materials with the first order transitions - direct measurements Author(s) Kamarád, Jiří (FZU-D) RID, ORCID
Kaštil, J. (CZ)
Arnold, Zdeněk (FZU-D) RID, SAI, ORCID
Javorský, P. (CZ)
Sechovský, V. (CZ)Number of authors 5 Source Title Acta Physica Polonica A. - : Polska Akademia Nauk - ISSN 0587-4246
Roč. 118, č. 5 (2010), s. 1000-1001Number of pages 2 s. Language eng - English Country PL - Poland Keywords magneto-caloric characteristics ; first order transitions ; Gd Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA202/09/0030 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100521 - FZU-D (2005-2011) UT WOS 000285797100118 EID SCOPUS 78649542268 Annotation The results of direct measurements of the magneto-caloric characteristics ΔTad and the indirect determination of ΔSm of pure Gd around the Curie temperature and of the FeMnP0.45AS0.55 and Ni45Co5Mn31Ga19 intermetallics in the vicinity of the first order magnetic and structural phase transitions are presented and discussed. A pronounced temperature and field dependence of the first order transitions in the studied materials manifests restrictions applying these materials in magnetic refrigeration techniques. An effective use of the Ericsson and the Brayton refrigeration cycles with FeMnP0.45AS0.55 in the role of a refrigerant is discussed. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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