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dc.contributor.authorDias, Thiagopt_BR
dc.contributor.authorMenéndez Dalmau, Enricpt_BR
dc.contributor.authorLiu, Haoliangpt_BR
dc.contributor.authorVan Haesendonck, Christianpt_BR
dc.contributor.authorVantomme, A.pt_BR
dc.contributor.authorTemst, Kristiaanpt_BR
dc.contributor.authorSchmidt, Joao Edgarpt_BR
dc.contributor.authorGiulian, Raquelpt_BR
dc.contributor.authorGeshev, Julian Penkovpt_BR
dc.date.accessioned2014-12-05T02:17:33Zpt_BR
dc.date.issued2014pt_BR
dc.identifier.issn0021-8979pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/107857pt_BR
dc.description.abstractThe training effect for exchange bias in field-cooled Co/CoO bilayers films is investigated. Previous experiments on the same system have shown that, starting from the ascending branch of the first hysteresis loop, coherent magnetization rotation is the dominant reversal mechanism. This is confirmed by the performed numerical simulations, which also indicate that the training is predominantly caused by changes of the rotatable anisotropy parameters of uncompensated spins at the Co/CoO interface. Moreover, in contrast with what is commonly assumed, the exchange coupling between the rotatable spins and the ferromagnetic layer is stronger than the coupling between the ferromagnet and the spins responsible for the bias. Thus, uncompensated spins strongly coupled to the ferromagnet contribute to the coercivity rather than to the bias, whatever the strength of their magnetic anisotropy.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of applied physics. New York. Vol. 115, no. 24 (June 2014), 243903, 6 p.pt_BR
dc.rightsOpen Accessen
dc.subjectFilmes finos magneticospt_BR
dc.subjectAnisotropia magnéticapt_BR
dc.subjectReversão de magnetizaçãopt_BR
dc.subjectMateriais ferromagnéticospt_BR
dc.subjectMagnetismo de interfacept_BR
dc.subjectForca coercivapt_BR
dc.subjectHisterese magnéticapt_BR
dc.subjectCompostos de cobaltopt_BR
dc.titleRotatable anisotropy driven training effects in exchange biased Co/CoO filmspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000944993pt_BR
dc.type.originEstrangeiropt_BR


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