First order reversal curve analysis of nanocrystalline Pd80Co20 alloy films

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dc.contributor.authorCornejo, D. R.
dc.contributor.authorNoce, R. D. [UNESP]
dc.contributor.authorPeixoto, T. R. F.
dc.contributor.authorBarelli, Nilso [UNESP]
dc.contributor.authorSumodjo, P. T. A.
dc.contributor.authorBenedetti, Assis Vicente [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:18:37Z
dc.date.available2014-05-20T14:18:37Z
dc.date.issued2009-06-24
dc.description.abstractFilms of isotropic nanocrystalline Pd80Co20 alloys were obtained by electrodeposition onto brass substrate in plating baths maintained at different pH values. Increasing the pH of the plating bath led to an increase in mean grain size without inducing significant changes in the composition of the alloy. The magnetocrystalline anisotropy constant was estimated and the value was of the same order of magnitude as that reported for samples with perpendicular magnetic anisotropy. First order reversal curve (FORC) analysis revealed the presence of an important component of reversible magnetization. Also, FORC diagrams obtained at different sweep rate of the applied magnetic field, revealed that this reversible component is strongly affected by kinetic effect. The slight bias observed in the irreversible part of the FORC distribution suggested the dominance of magnetizing intergrain exchange coupling over demagnetizing dipolar interactions and microstructural disorder. (c) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv São Paulo, Inst Fis, BR-05508900 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Quim Fis, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUniv São Paulo, Inst Quim, BR-05508900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim Fis, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent43-48
dc.identifierhttp://dx.doi.org/10.1016/j.jallcom.2008.12.131
dc.identifier.citationJournal of Alloys and Compounds. Lausanne: Elsevier B.V. Sa, v. 479, n. 1-2, p. 43-48, 2009.
dc.identifier.doi10.1016/j.jallcom.2008.12.131
dc.identifier.issn0925-8388
dc.identifier.urihttp://hdl.handle.net/11449/25615
dc.identifier.wosWOS:000267063300027
dc.language.isoeng
dc.publisherElsevier B.V. Sa
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.ispartofjcr3.779
dc.relation.ispartofsjr1,020
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMagnetic films and multilayersen
dc.subjectElectrodepositionen
dc.subjectAnisotropyen
dc.subjectMagnetizationen
dc.subjectMagnetic measurementsen
dc.titleFirst order reversal curve analysis of nanocrystalline Pd80Co20 alloy filmsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V. Sa
unesp.author.lattes1769008264876945[6]
unesp.author.orcid0000-0002-0243-6639[6]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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