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Pressure effect on phase transitions and magnetocaloric effect in Gd.sub.5./sub.Ge.sub.4./sub..
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SYSNO ASEP 0326801 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Pressure effect on phase transitions and magnetocaloric effect in Gd5Ge4. Title Vliv vysokých tlaků na fázové přechody a magnetokalorický efekt v Gd5Ge4. Author(s) Arnold, Zdeněk (FZU-D) RID, SAI, ORCID
Skorokhod, Yuriy (FZU-D) RID
Kamarád, Jiří (FZU-D) RID, ORCID
Magen, C. (ES)
Algarabel, P.A. (ES)Source Title Journal of Applied Physics. - : AIP Publishing - ISSN 0021-8979
Roč. 105, č. 3 (2009), 07A934/1-07A934/3Number of pages 3 s. Language eng - English Country US - United States Keywords Curie temperature ; ferromagnetic materials ; ferromagnetic-antiferromagnetic transitions ; gadolinium compounds ; magnetocaloric effect Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA106/06/0368 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100521 - FZU-D (2005-2011) UT WOS 000266633500259 DOI 10.1063/1.3070661 Annotation We present the results of study of magnetocaloric effect in Gd5Ge4 under high hydrostatic pressure up to 9 kbar in magnetic field up to 5 T. The pressure-induced mixed-phase state with gradual dominance of the FM phase leads to a smoothing of a peak shape of the magnetic entropy change and to a pronounced reduction in the |ΔSM|max value at low pressure. Temperature of the maximum of the |ΔSM| increases remarkably with increasing pressure with a slope that corresponds to a pressure-induced increase in the Curie temperature TC(+4.8 K/kbar). Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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