Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Investigation On The Magnetocaloric Effect In (gd,pr)al2 Solid Solutions
Author: De Sousa V.S.R.
Carvalho A.M.G.
Plaza E.J.R.
Alho B.P.
Tedesco J.C.G.
Coelho A.A.
De Oliveira N.A.
Von Ranke P.J.
Abstract: A theoretical and experimental investigation on the magnetocaloric properties of the rare earth pseudo-binary compounds Gd1-nPr nAl2 is presented. The calculated isothermal entropy and adiabatic temperature changes under magnetic field variations from 0 to 2 T and from 0 to 5 T are in good agreement with the experimental data. For the Pr-concentrations n=0.25, 0.5 and 0.75 the experimental data present an inverse magnetocaloric effect which was theoretically predicted and associated with the competition between the opposite magnetizations of the Gd and Pr sublattices. The two-sublattice Hamiltonian used in the calculations takes into account the crystal field, exchange and Zeeman interactions. © 2010 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.jmmm.2010.10.046
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
2-s2.0-78650521309.pdf580.29 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.