Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/104761
Type: Artigo de periódico
Title: Magnetocaloric Effect And Transport Properties Of Gd5ge2(si1-xsnx)2 (x=0.23 And 0.40) Compounds
Author: Campoy J.C.P.
Plaza E.J.R.
Nascimento F.C.
Coelho A.A.
Pereira M.C.
Fabris J.D.
Raposo M.T.
Cardoso L.P.
Persiano A.I.C.
Gama S.
Abstract: We report a study about the structural properties of polycrystalline samples of nominal composition Gd5Ge2(Si1-xSnx)2 (x=0.23, 0.40) that closely influence their physical behavior particularly related to electric resistivity and magnetocaloric (MCE) effect. The samples were characterized by X-ray diffraction (XRD) using the Rietveld refinement method, metallographic analyses, 119Sn Mössbauer spectroscopy, DC magnetization and electrical transport measurements. It was identified a Gd5Si2Ge2-monoclinic phase for x=0.23 and a Sm5Sn4-orthorhombic phase (type II) for x=0.40, both with two non-equivalent crystallographic sites for the Sn ions. We were able to infer on the role of tin on the magnetic and transport properties in these compounds. © 2007 Elsevier B.V. All rights reserved.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/j.jmmm.2007.03.023
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-34250304647&partnerID=40&md5=01508886f9d6b580493712a2dd5a99e9
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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