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Barocaloric and magnetocaloric effects in Fe49Rh51

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10.1103/PhysRevB.89.214105
 
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hdl:2117/23658

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Stern-Taulats, E.
Planes, Antoni
Lloveras Muntané, Pol MarcelMés informacióMés informacióMés informació
Barrio Casado, María delMés informacióMés informacióMés informació
Tamarit Mur, José LuisMés informacióMés informacióMés informació
Pramanick, Sabyasachi
Majumdar, Subham
Frontera, Carlos
Mañosa, Lluís
Document typeArticle
Defense date2014-06-06
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
We report on calorimetry under applied hydrostatic pressure and magnetic field at the antiferromagnetic-ferromagnetic (AFM/FM) transition of Fe49Rh51. Results demonstrate the existence of a giant barocaloric effect in this alloy, a functional property that adds to the magnetocaloric and elastocaloric effects previously reported for this alloy. All caloric effects originate from the AFM/FM transition which encompasses changes in volume, magnetization, and entropy. The strong sensitivity of the transition temperatures to both hydrostatic pressure and magnetic field confers to this alloy outstanding values for the barocaloric and magnetocaloric strengths (|¿S|/¿p ~ 12 J kg-1K-1kbar-1 and |¿S|/µ0¿H~ 12 J kg-1K-1T-1). Both barocaloric and magnetocaloric effects have been found to be reproducible upon pressure and magnetic field cycling. Such a good reproducibility and the large caloric strengths make Fe-Rh alloys particularly appealing for solid-state cooling technologies at weak external stimuli.
CitationStern-Taulats, E. [et al.]. Barocaloric and magnetocaloric effects in Fe49Rh51. "Physical review. B, solid state", 06 Juny 2014, vol. 89, núm. 21, p. 214105-1-214105-8. 
URIhttp://hdl.handle.net/2117/23658
DOI10.1103/PhysRevB.89.214105
ISSN0556-2805
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  • Departament de Física i Enginyeria Nuclear (fins octubre 2015) - Articles de revista [603]
  • GCM - Grup de Caracterització de Materials - Articles de revista [332]
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