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dc.creatorMamani, Niko Churata-
dc.creatorSilva, Rafael Tomaz da-
dc.creatorZevallos, Angela Ortiz de-
dc.creatorCotta, Alexandre Alberto Chaves-
dc.creatorMacedo, Waldemar Augusto de Almeida-
dc.creatorSiu Li, Máximo-
dc.creatorBernardi, Maria Inês Basso-
dc.creatorDoriguetto, Antonio Carlos-
dc.creatorCarvalho, Hugo Bonette de-
dc.date.accessioned2018-07-13T19:45:03Z-
dc.date.available2018-07-13T19:45:03Z-
dc.date.issued2017-02-
dc.identifier.citationMAMANI, N. C. et al. On the nature of the room temperature ferromagnetism in nanoparticulate co-doped zno thin films prepared by EB-PVD. Journal of Alloys and Compounds, Lausanne, v. 695, p. 2682-2688, Feb. 2017.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0925838816336635pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/29688-
dc.description.abstractThe complete comprehension of the magnetic properties of the dilute magnetic oxides has emerged as one of the major challenges in the fields of materials science and condensed matter physics. Up to now, there is no consensus about the mechanism behind the so often observed room temperature ferromagnetism. However it is well known that defects plays an important role in the context. Here we present the study of the correlation between the structural and the magnetic properties of nanoparticulate Co-doped ZnO (Zn1−xCoxO, x = 0.02 and 0.08) thin films prepared via Electron Beam-Physical Vapor Deposition. The structural results confirms the incorporation of the Co2+ ions into the ZnO host matrix with no secondary phases. Magnetic measurements show a robust ferromagnetic order for the thin film with x = 0.08, whereas for the sample with x = 0.02 only a tiny ferromagnetism were observed. We could explain the differences in the magnetic behavior entirely under the scope of the spin-split impurity band model. In this work we also present convincing evidences of the no correlation between the oxygen vacancies and the desired room temperature ferromagnetism.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceJournal of Alloys and Compoundspt_BR
dc.subjectDilute magnetic oxidespt_BR
dc.subjectDefect ferromagnetismpt_BR
dc.subjectCo-doped ZnO thin filmspt_BR
dc.subjectStructural and magnetic characterizationpt_BR
dc.titleOn the nature of the room temperature ferromagnetism in nanoparticulate co-doped zno thin films prepared by EB-PVDpt_BR
dc.typeArtigopt_BR
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