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Type: Artigo de periódico
Title: Magnetic properties and magnetocaloric effect of the HoAgGa compound
Author: da Silva, LM
dos Santos, AO
Coelho, AA
Cardoso, LP
Abstract: Magnetic properties and magnetocaloric effect (MCE) of the HoAgGa compound are investigated by magnetization and heat capacity measurements. A giant reversible MCE was observed around T-C = 7.2K. The maximum values of magnetic entropy change and adiabatic temperature are found to be 16 J kg(-1) K-1 and 6 K, respectively, with a refrigerant capacity value of 262 J kg(-1) for field change of 5T. These magnetocaloric parameters also remain large for a wide range of temperature above TC. The large MCE as well as no hysteresis loss make HoAgGa an attractive candidate for low temperature magnetic refrigerant. (C) 2013 AIP Publishing LLC.
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.4826440
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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