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dc.contributor.authorAlves, Tibério Magno de Limapt_BR
dc.contributor.authorBezerra, Claudionor Gomespt_BR
dc.contributor.authorViegas, Alexandre da Caspt_BR
dc.contributor.authorNicolodi, Sabrinapt_BR
dc.contributor.authorCorrêa, Marcio Assolinpt_BR
dc.contributor.authorBohn, Felipept_BR
dc.date.accessioned2015-11-18T02:38:25Zpt_BR
dc.date.issued2015pt_BR
dc.identifier.issn0021-8979pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/129847pt_BR
dc.description.abstractWe performed a theoretical and experimental investigation of the quasi-static magnetic properties of anisotropic systems. We considered a modified Stoner-Wohlfarth model to describe anisotropic systems, and a distribution function to express the magnetic anisotropy dispersion. We also proposed a procedure to calculate the magnetic properties from experimental results of the quadrature of magnetization curves, thus quantifying the magnetic anisotropy dispersion. To test the robustness of the approach, we applied the theoretical model to describe the quasi-static magnetic properties of amorphous FeCuNbSiB ferromagnetic films, and directly compared the theoretical results with longitudinal and transverse magnetization curves measured for the films. Our films are characterized by anisotropy fields between 7 and 10.5 Oe, values compatible with that obtained for several amorphous magnetic materials, as well as by anisotropy dispersions expressed by exponents n between 14 and 30. Thus, the excellent agreement between numerical calculation and experimental results provides support to confirm the validity of our theoretical approach to describe the magnetic properties of anisotropic amorphous ferromagnetic films.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of applied physics. New York. Vol. 117, no. 8 (Feb. 2015), 083901, 9 p.pt_BR
dc.rightsOpen Accessen
dc.subjectAnisotropia magnéticapt_BR
dc.subjectMagnetizaçãopt_BR
dc.subjectFilmes finos magneticospt_BR
dc.subjectMateriais ferromagnéticospt_BR
dc.subjectLigas de boropt_BR
dc.subjectLigas de cobrept_BR
dc.subjectLigas de nióbiopt_BR
dc.subjectLigas de ferropt_BR
dc.subjectLigas de siliciopt_BR
dc.titleQuantifying magnetic anisotropy dispersion : theoretical and experimental study of the magnetic properties of anisotropic FeCuNbSiB ferromagnetic filmspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000977324pt_BR
dc.type.originEstrangeiropt_BR


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