Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/52950
Type: Artigo de periódico
Title: A comparative study of the magnetocaloric effect in RNi2 (R=Nd, Gd, Tb) intermetallic compounds
Author: Plaza, EJR
de Sousa, VSR
von Ranke, PJ
Gomes, AM
Rocco, DL
Leitao, JV
Reis, MS
Abstract: Conventional and anisotropic magnetocaloric effects were studied in cubic rare earth RNi2 (R= Nd, Gd, Tb) ferromagnetic intermetallic compounds. These three compounds are representative of small, null, and large magnetocrystalline anisotropy in the series, respectively. Magnetic measurements were performed in polycrystalline samples in order to obtain the isothermal magnetocaloric data, which were confronted with theoretical results based on mean field calculations. For the R=Tb case, we explore the crystalline electrical-field anisotropy to predict the anisotropic magnetocaloric behavior due to the rotation of an applied magnetic field of constant intensity. Our results suggest the possibility of using both conventional and anisotropic magnetic entropy changes to extend the range of temperatures for use in the magnetocaloric effect. c 2009 American Institute of Physics. [DOI: 10.1063/1.3054178]
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.3054178
Date Issue: 2009
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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