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Open Access item Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb5Si2Ge2

Authors:Pereira, A. M.
Magen, C.
Algarabel, Pedro A.
Ritter, C.
Morellón, Luis
Ibarra, M. Ricardo
Issue Date:Mar-2011
Publisher:American Institute of Physics
Citation:Applied Physics Letters 98(12): 122501 (2011)
Abstract:In this letter, it is shown that when replacing Ge by Fe in Tb5Si2Ge2 the structural transition still occurs and enhances the magnetocaloric effect (MCE) (up to 66%) with maximum of MCE at a critical Fe amount where the magnetic and structural transitions become fully coupled. It is observed that Fe concentration is able to mimic the effect of external pressure as it induces a complex microstructure, that tunes long range strain fields. This knowledge is crucial for the development of strategies toward materials with improved performance for efficient magnetic refrigeration applications.
Description:3 páginas, 3 figuras.-- et al.
Publisher version (URL):http://dx.doi.org/10.1063/1.3567920
E-ISSNmetadata.dc.identifier.doi = DOI:1077-3118
Appears in Collections:(ICMA) Artículos

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