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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/113516
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dc.contributor.authorFerreira, Rafael A.-
dc.contributor.authorTedesco, Julio C. G.-
dc.contributor.authorBirk, Jonas O.-
dc.contributor.authorKalceff, Walter-
dc.contributor.authorYokaichiya, Fabiano-
dc.contributor.authorRasmussen, Nina-
dc.contributor.authorPena, Octavio-
dc.contributor.authorHenry, Paul F.-
dc.contributor.authorSimeoni, Giovanna G.-
dc.contributor.authorBordallo, Heloisa N.-
dc.contributor.authorLisboa Filho, Paulo Noronha-
dc.date.accessioned2014-12-03T13:11:45Z-
dc.date.accessioned2016-10-25T20:15:04Z-
dc.date.available2014-12-03T13:11:45Z-
dc.date.available2016-10-25T20:15:04Z-
dc.date.issued2014-07-15-
dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2014.02.042-
dc.identifier.citationMaterials Chemistry And Physics. Lausanne: Elsevier Science Sa, v. 146, n. 1-2, p. 58-64, 2014.-
dc.identifier.issn0254-0584-
dc.identifier.urihttp://hdl.handle.net/11449/113516-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/113516-
dc.description.abstractWe demonstrate that a Ni-Mn oxide partially inverted spinel (Ni1-pMnv)[NivMn2-v]O-4 having inversion degree v approximate to 0.8 and produced by a modified polymeric precursor method exhibits behaviour previously reported only in monophased samples. The structure of the specimen was determined using Rietveld analysis of X-ray and neutron powder diffraction data, showing that at room temperature the material crystallizes in the Fd3(over bar)m space group with a lattice constant a = 8.392 angstrom. Combining magnetization measurements with neutron powder diffraction, we show that the magnetic structure of this spinel is associated with the interplay between the ferromagnetic and antiferromagnetic lattices which coexist due to the cations' presence on both tetrahedral and octahedral sites. Our analysis of the neutron diffraction data confirms the postulated magnetic structure involving a star-like moment arrangement, arising from competition for the B (octahedral) spinel sites by the Ni and Mn cations. Finally, we show that strong magnetic fluctuations are observed in the inelastic neutron scattering data. (C) 2014 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipNR-
dc.description.sponsorshipHNB-
dc.format.extent58-64-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectMagnetic materialsen
dc.subjectChemical synthesisen
dc.subjectX-ray scatteringen
dc.subjectNeutron scattering and diffractionen
dc.subjectRietveld analysisen
dc.subjectMagnetic structuresen
dc.titleFerrimagnetism and spin excitation in a Ni-Mn partially inverted spinel prepared using a modified polymeric precursor methoden
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniv Rennes 1-
dc.contributor.institutionUniv Copenhagen-
dc.contributor.institutionUniv Technol Sydney-
dc.contributor.institutionLab Nacl Luz Sincrotron-
dc.contributor.institutionComissao Nacl Energia Nucl-
dc.contributor.institutionEuropean Spallat Source ESS AB-
dc.contributor.institutionTech Univ Munich-
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias, Programa Posgrad Ciencia & Tecnol Mat POSMAT, BR-17033360 Sao Paulo, Brazil-
dc.description.affiliationUniv Rennes 1, Inst Sci Chim Rennes UMR 6226, F-35042 Rennes, France-
dc.description.affiliationUniv Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark-
dc.description.affiliationUniv Technol Sydney, Sch Phys & Adv Mat, Broadway, NSW 2007, Australia-
dc.description.affiliationLab Nacl Luz Sincrotron, BR-13083970 Campinas, SP, Brazil-
dc.description.affiliationComissao Nacl Energia Nucl, Inst Pesquisas Energet & Nucl, Reactor Multiproposito Brasileiro, Sao Paulo, Brazil-
dc.description.affiliationEuropean Spallat Source ESS AB, S-22100 Lund, Sweden-
dc.description.affiliationTech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, D-85748 Garching, Germany-
dc.description.affiliationTech Univ Munich, Dept Phys, D-85748 Garching, Germany-
dc.description.affiliationUniv Estadual Paulista, Dept Fis, Fac Ciencias, BR-17033360 Sao Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias, Programa Posgrad Ciencia & Tecnol Mat POSMAT, BR-17033360 Sao Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fis, Fac Ciencias, BR-17033360 Sao Paulo, Brazil-
dc.description.sponsorshipIdCNPq: 706/11-
dc.identifier.doi10.1016/j.matchemphys.2014.02.042-
dc.identifier.wosWOS:000336467900008-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofMaterials Chemistry and Physics-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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