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Bulk and high-energy ball-milled Gd5Si2Ge2: Comparative study of magnetic and magnetocaloric properties

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dc.contributor.authordo Couto, Giselle Giovanna [UNESP]
dc.contributor.authorSvitlyk, Volodymyr
dc.contributor.authorJafelicci, Miguel [UNESP]
dc.contributor.authorMozharivskyj, Yurij
dc.contributor.institutionMcMaster Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:33:12Z
dc.date.available2014-05-20T15:33:12Z
dc.date.issued2011-01-01
dc.description.abstractHigh-energy ball milling was employed to produce small particles of Gd5Si2Ge2. Magnetic and magnetocaloric properties of the ball-milled and bulk Gd5Si2Ge2 samples were investigated through the magnetization measurements. When compared to the bulk material, a significant decrease in saturation magnetization and magnetocaloric effect (-Delta S-max = 4 vs. 20 J/kgK for Delta H = 0-5 T) is observed even after the relatively short ball milling time of 4 h which produced particles with an average size of ca. 0.5 mu m. The ball-milled samples appear to loose a first-order structural transition, present in bulk Gd5Si2Ge2, and display a superparamagnetic behaviour below the corresponding Curie temperatures. (C) 2010 Elsevier Masson SAS. All rights reserved.en
dc.description.affiliationMcMaster Univ, Dept Chem & Chem Biol, Hamilton, on L8S 4M1, Canada
dc.description.affiliationSão Paulo State Univ, Lab Magnet Mat & Colloids, Dept Phys Chem, São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Lab Magnet Mat & Colloids, Dept Phys Chem, São Paulo, Brazil
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada (NSERC)
dc.description.sponsorshipMRI, Ontario
dc.format.extent209-215
dc.identifierhttp://dx.doi.org/10.1016/j.solidstatesciences.2010.11.016
dc.identifier.citationSolid State Sciences. Amsterdam: Elsevier B.V., v. 13, n. 1, p. 209-215, 2011.
dc.identifier.doi10.1016/j.solidstatesciences.2010.11.016
dc.identifier.issn1293-2558
dc.identifier.urihttp://hdl.handle.net/11449/41905
dc.identifier.wosWOS:000287286000035
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSolid State Sciences
dc.relation.ispartofjcr1.861
dc.relation.ispartofsjr0,574
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMagnetic propertiesen
dc.subjectMagnetocaloric propertiesen
dc.subjectBall millingen
dc.subjectStructural transitionen
dc.titleBulk and high-energy ball-milled Gd5Si2Ge2: Comparative study of magnetic and magnetocaloric propertiesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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