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Título : Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb5Si2Ge2
Autor : Pereira, A. M., Magen, C., Algarabel, Pedro A., Ritter, C., Morellón, Luis, Ibarra, M. Ricardo
Fecha de publicación : Mar-2011
Editor: American Institute of Physics
Citación : Applied Physics Letters 98(12): 122501 (2011)
Resumen: 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.
Descripción : 3 páginas, 3 figuras.-- et al.
Versión del editor:
ISSN: 0003-6951
DOI: 10.1063/1.3567920
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