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dc.contributor.authorGeshev, Julian Penkovpt_BR
dc.contributor.authorPereira, Luis Gustavopt_BR
dc.contributor.authorSchmidt, Joao Edgarpt_BR
dc.contributor.authorMikhov, Mihailpt_BR
dc.date.accessioned2014-05-31T02:06:37Zpt_BR
dc.date.issued2001pt_BR
dc.identifier.issn0021-8979pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/95810pt_BR
dc.description.abstractMagnetization and remanent magnetization curves for noninteracting single-domain particles with cubic magnetocrystalline anisotropy have been calculated, taking into account the first two anisotropy constants. The dependencies of the saturation remanence, coercivity, remanence coercivity, and δM plots on the anisotropy constants ratio have been discussed. It has been found that the calculated saturation remanence shows maxima in the vicinity of the spin-reorientation transition points for both negative and positive first cubic anisotropy constants. The remanent magnetization for the case when the face diagonals ‹110› are the easiest magnetization orientations has been analytically determined as well. It has been shown that when more than one type of easiest directions coexist, the remanence of the system can only be obtained numerically because of the history dependence of the remanent magnetization for some particles’ configurations. The predicted remanence behavior for systems representing spin-reorientation has been compared with that of a Tb0.6Ho0.4Fe2 powder sample, and an excellent agreement between numerical and experimental data has been found.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of applied physics. Melville. Vol. 90, no. 12 (Dec. 2001), p. 6243-6250pt_BR
dc.rightsOpen Accessen
dc.subjectForca coercivapt_BR
dc.subjectAnisotropia magnéticapt_BR
dc.subjectPartículas magnéticaspt_BR
dc.subjectMagnetizaçãopt_BR
dc.subjectRemanênciapt_BR
dc.subjectDinâmica de spinpt_BR
dc.titleDependence of the magnetization and remanence of single-domain particles on the second cubic anisotropy constantpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000310690pt_BR
dc.type.originEstrangeiropt_BR


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