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dc.contributor.authorCarara, Marcos Andrept_BR
dc.contributor.authorBaibich, Mario Norbertopt_BR
dc.contributor.authorSommer, Rubem Luispt_BR
dc.date.accessioned2014-05-20T02:04:56Zpt_BR
dc.date.issued2000pt_BR
dc.identifier.issn0021-8979pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/95426pt_BR
dc.description.abstractIn this work, the magnetization dynamics of soft magnetic materials is studied with the aid of transverse differential permeability μ(Iac , f ,Hdc) spectra. Contributions to the magnetization processes from domain wall motion and rotation of the magnetization can be extracted from the transverse differential permeability data which are in turn obtained from impedance Z(Iac , f ,Hdc) spectra. In particular, an iteration method is used to extract μ(Iac , f ,Hdc) from Z(Iac , f ,Hdc) data. The approach is tested in samples with a very well known domain structure, namely (110)[[001]FeSi3%. Permeability spectra μ(Iac , f ,Hdc) were obtained in the frequency range (100 Hz<f<=100 <=kHz), probe current range (0.1<Iac<50 mA) and dc magnetizing field range (0<=Hdc<=500 Oe). It is shown that the method developed in this article can be efficiently used to identify and study different dynamic processes driven by the probe current and controlled by the external dc field. In particular, it is shown that the method provides the tools to separate the reversible and irreversible parts of these processes.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of applied physics. Melville. Vol. 88, no. 1 (July 2000), p. 331-335pt_BR
dc.rightsOpen Accessen
dc.subjectMateriais magnéticospt_BR
dc.subjectMagnetizaçãopt_BR
dc.subjectMagnetoimpedanciapt_BR
dc.subjectMateriais ferromagnéticospt_BR
dc.subjectPermeabilidade magnéticapt_BR
dc.subjectEfeitos galvanomagneticospt_BR
dc.subjectLigas de ferropt_BR
dc.subjectLigas de siliciopt_BR
dc.subjectMétodos iterativospt_BR
dc.subjectParedes de dominiopt_BR
dc.titleMagnetization dynamics as derived from magneto impedance measurementspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000274876pt_BR
dc.type.originEstrangeiropt_BR


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