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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleCrystal structure of fluorite-related Ln(3)SbO(7) (Ln=La-Dy) ceramics studied by synchrotron X-ray diffraction and Raman scatteringpt_BR
dc.contributor.authorSiqueira, KPFpt_BR
dc.contributor.authorBorges, RMpt_BR
dc.contributor.authorGranado, Ept_BR
dc.contributor.authorMalard, LMpt_BR
dc.contributor.authorde Paula, AMpt_BR
dc.contributor.authorMoreira, RLpt_BR
dc.contributor.authorBittar, EMpt_BR
dc.contributor.authorDias, Apt_BR
unicamp.author.emailanderson_dias@iceb.ufop.brpt_BR
unicamp.authorSiqueira, K. P. F. Borges, R. M. Dias, A. Univ Fed Ouro Preto, Dept Quim, BR-35400000 Ouro Preto, MG, Brazilpt_BR
unicamp.authorGranado, E. Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazilpt_BR
unicamp.authorMalard, L. M. de Paula, A. M. Moreira, R. L. Univ Fed Minas Gerais, ICEx, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazilpt_BR
unicamp.authorBittar, E. M. Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectSynchrotron X-ray diffractionpt_BR
dc.subjectSHGpt_BR
dc.subjectLanthanidept_BR
dc.subjectAntimonatespt_BR
dc.subjectRaman scatteringpt_BR
dc.subject.wosMagnetic-propertiespt_BR
dc.subject.wosThermal-propertiespt_BR
dc.subject.wosRare-earthpt_BR
dc.subject.wosLn(3)nbo(7) Lnpt_BR
dc.subject.wosPhonon Modespt_BR
dc.subject.wosNdpt_BR
dc.subject.wosSmpt_BR
dc.subject.wosOxidespt_BR
dc.subject.wosTransitionspt_BR
dc.subject.wosPrpt_BR
dc.description.abstractLn(3)SbO(7) (Ln=La, Pr, Nd, Sm, Eu, Gd, Tb and Dy) ceramics were synthesized by solid-state reaction in optimized conditions of temperature and time to yield single-phase ceramics. The crystal structures of the obtained ceramics were investigated by synchrotron X-ray diffraction, second harmonic generation (SHG) and Raman scattering. All samples exhibited fluorite-type orthorhombic structures with different oxygen arrangements as a function of the ionic radius of the lanthanide metal. For ceramics with the largest ionic radii (La Nd), the ceramics crystallized into the Cmcm space group, while the ceramics with intermediate and smallest ionic radii (Sm Dy) exhibited a different crystal structure belonging to the same space group, described under the Cam setting. The results from SHG and Raman scattering confirmed these settings and ruled out any possibility for the non-centrosymmetric 0221 space group describing the structure of the small ionic radii ceramics, solving a recent controversy in the literature. Besides, the Raman modes for all samples are reported for the first time, showing characteristic features for each group of samples. (C) 2013 Elsevier Inc. All rights reserved.pt
dc.relation.ispartofJournal Of Solid State Chemistrypt_BR
dc.relation.ispartofabbreviationJ. Solid State Chem.pt_BR
dc.publisher.citySan Diegopt_BR
dc.publisher.countryEUApt_BR
dc.publisherAcademic Press Inc Elsevier Sciencept_BR
dc.date.issued2013pt_BR
dc.date.monthofcirculationJULpt_BR
dc.identifier.citationJournal Of Solid State Chemistry. Academic Press Inc Elsevier Science, v. 203, n. 326, n. 332, 2013.pt_BR
dc.language.isoenpt_BR
dc.description.volume203pt_BR
dc.description.firstpage326pt_BR
dc.description.lastpage332pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policypt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0022-4596pt_BR
dc.identifier.wosidWOS:000325190300049pt_BR
dc.identifier.doi10.1016/j.jssc.2013.05.001pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFINEPpt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)pt_BR
dc.description.sponsorship1Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.date.available2014-07-30T14:03:03Z
dc.date.available2015-11-26T17:22:23Z-
dc.date.accessioned2014-07-30T14:03:03Z
dc.date.accessioned2015-11-26T17:22:23Z-
dc.description.provenanceMade available in DSpace on 2014-07-30T14:03:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2013en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:22:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2013en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/57447
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/57447-
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