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Tuning of magnetocaloric effect in a La.sub.0.69./sub.Ca.sub.0.31./sub.MnO.sub.3./sub. single crystal by pressure,
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SYSNO ASEP 0039979 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Tuning of magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal by pressure, Title Ladění magnetrokalorického jevu v monokrystalechLa0.69Ca0.31MnO3 pomocí vysokých tlaků Author(s) Sun, Y. (CN)
Kamarád, Jiří (FZU-D) RID, ORCID
Arnold, Zdeněk (FZU-D) RID, SAI, ORCID
Kou, Z.. (CN)
Cheng, Z. (CN)Source Title Applied Physics Letters. - : AIP Publishing - ISSN 0003-6951
Roč. 88, č. 10 (2006), 102505/1-102505/3Number of pages 3 s. Language eng - English Country US - United States Keywords magnetocaloric effect ; pressure effect ; manganites ; single crystal 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) Annotation We report a study of the effect of hydrostatic pressure on the magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal. The peak position of .delta.Sm significantly moves to higher temperatures, from 213.5 K under ambient pressure up to 236.5 K under a pressure of 1.1 GPa, while the maximum value of .delta.Sm remains nearly the same. These exceptional results demonstrate that the magnetocaloric effect in magnetic materials with strong spin-lattice coupling can be effectively tuned by pressure Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2007
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