Ferrimagnetism and spin excitation in a Ni-Mn partially inverted spinel prepared using a modified polymeric precursor method

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniv Rennes 1
dc.contributorUniv Copenhagen
dc.contributorUniv Technol Sydney
dc.contributorLab Nacl Luz Sincrotron
dc.contributorComissao Nacl Energia Nucl
dc.contributorEuropean Spallat Source ESS AB
dc.contributorTech Univ Munich
dc.creatorFerreira, Rafael A. [UNESP]
dc.creatorTedesco, Julio C. G.
dc.creatorBirk, Jonas O.
dc.creatorKalceff, Walter
dc.creatorYokaichiya, Fabiano
dc.creatorRasmussen, Nina
dc.creatorPena, Octavio
dc.creatorHenry, Paul F.
dc.creatorSimeoni, Giovanna G.
dc.creatorBordallo, Heloisa N.
dc.creatorLisboa Filho, Paulo Noronha [UNESP]
dc.date2014-12-03T13:11:45Z
dc.date2014-12-03T13:11:45Z
dc.date2014-07-15
dc.date.accessioned2023-09-09T10:16:53Z
dc.date.available2023-09-09T10:16:53Z
dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2014.02.042
dc.identifierMaterials Chemistry And Physics. Lausanne: Elsevier Science Sa, v. 146, n. 1-2, p. 58-64, 2014.
dc.identifier0254-0584
dc.identifierhttp://hdl.handle.net/11449/113516
dc.identifier10.1016/j.matchemphys.2014.02.042
dc.identifierWOS:000336467900008
dc.identifier1353862414532005
dc.identifier0000-0002-7734-4069
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8763112
dc.descriptionWe 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.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionNR
dc.descriptionHNB
dc.descriptionUniv Estadual Paulista, Fac Ciencias, Programa Posgrad Ciencia & Tecnol Mat POSMAT, BR-17033360 Sao Paulo, Brazil
dc.descriptionUniv Rennes 1, Inst Sci Chim Rennes UMR 6226, F-35042 Rennes, France
dc.descriptionUniv Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark
dc.descriptionUniv Technol Sydney, Sch Phys & Adv Mat, Broadway, NSW 2007, Australia
dc.descriptionLab Nacl Luz Sincrotron, BR-13083970 Campinas, SP, Brazil
dc.descriptionComissao Nacl Energia Nucl, Inst Pesquisas Energet & Nucl, Reactor Multiproposito Brasileiro, Sao Paulo, Brazil
dc.descriptionEuropean Spallat Source ESS AB, S-22100 Lund, Sweden
dc.descriptionTech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, D-85748 Garching, Germany
dc.descriptionTech Univ Munich, Dept Phys, D-85748 Garching, Germany
dc.descriptionUniv Estadual Paulista, Dept Fis, Fac Ciencias, BR-17033360 Sao Paulo, Brazil
dc.descriptionUniv Estadual Paulista, Fac Ciencias, Programa Posgrad Ciencia & Tecnol Mat POSMAT, BR-17033360 Sao Paulo, Brazil
dc.descriptionUniv Estadual Paulista, Dept Fis, Fac Ciencias, BR-17033360 Sao Paulo, Brazil
dc.descriptionCNPq: 706/11
dc.format58-64
dc.languageeng
dc.publisherElsevier B.V.
dc.relationMaterials Chemistry and Physics
dc.relation2.210
dc.relation0,615
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectMagnetic materials
dc.subjectChemical synthesis
dc.subjectX-ray scattering
dc.subjectNeutron scattering and diffraction
dc.subjectRietveld analysis
dc.subjectMagnetic structures
dc.titleFerrimagnetism and spin excitation in a Ni-Mn partially inverted spinel prepared using a modified polymeric precursor method
dc.typeArtigo


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