Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/241595
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampSilva, Eduardo Granado Monteiro dapt_BR
dc.contributor.authorunicampPagliuso, Pascoal José Gigliopt_BR
dc.typeArtigopt_BR
dc.titleStructural and magnetic properties of the La2-xCaxCoIrO6 double perovskite seriespt_BR
dc.contributor.authorCoutrim, L. T.pt_BR
dc.contributor.authorFreitas, D. C.pt_BR
dc.contributor.authorFontes, M. B.pt_BR
dc.contributor.authorBaggio-Saitovitch, E.pt_BR
dc.contributor.authorBittar, E. M.pt_BR
dc.contributor.authorGranado, E.pt_BR
dc.contributor.authorPagliuso, P. G.pt_BR
dc.contributor.authorBufaical, L.pt_BR
dc.subjectPerovskitas duplas, Cobalto, Irídiopt_BR
dc.subject.otherlanguageDouble perovskite, Cobalt, Iridiumpt_BR
dc.description.abstractPolycrystalline samples of the series La2-xCaxCoIrO6 (0 <= x <= 1.2) have been synthesized and its structural and magnetic properties were investigated using experiments of X-ray powder diffraction, temperature dependent magnetic susceptibility and magnetization as a function of applied magnetic field. All grown polycrystalline compounds form in a monoclinic structure (space group P2(1)/n) with a partially ordered distribution of transition metal cations Co/Ir over the six-coordinate sites. Our results indicate variation of the magnetic interactions between Co and Ir magnetic sublattices possibly due to valence changes of the transition metals, induced by doping. The undoped La2CoIrO6 presents magnetic ordering at similar to 97 K, while for Ca-doped compounds a decrease of net magnetization and ordering temperatures was observed. For x=0.2 and 0.5 the emergence of a second magnetic interaction, due to the presence of high spin Co3+, becomes evident. Interestingly, for x=0.8 the large effective magnetic moment indicates strong orbital contribution and spin-orbit coupling and/or the presence of Co4+ in high spin state. (C) 2014 Elsevier Inc. All rights reserved.en
dc.description.abstractPolycrystalline samples of the series La2-xCaxCoIrO6 (0 <= x <= 1.2) have been synthesized and its structural and magnetic properties were investigated using experiments of X-ray powder diffraction, temperature dependent magnetic susceptibility and magnetization as a function of applied magnetic field. All grown polycrystalline compounds form in a monoclinic structure (space group P2(1)/n) with a partially ordered distribution of transition metal cations Co/Ir over the six-coordinate sites. Our results indicate variation of the magnetic interactions between Co and Ir magnetic sublattices possibly due to valence changes of the transition metals, induced by doping. The undoped La2CoIrO6 presents magnetic ordering at similar to 97 K, while for Ca-doped compounds a decrease of net magnetization and ordering temperatures was observed. For x=0.2 and 0.5 the emergence of a second magnetic interaction, due to the presence of high spin Co3+, becomes evident. Interestingly, for x=0.8 the large effective magnetic moment indicates strong orbital contribution and spin-orbit coupling and/or the presence of Co4+ in high spin state.pt_BR
dc.relation.ispartofJournal of solid state chemistrypt_BR
dc.relation.ispartofabbreviationJ. solid state chem.pt_BR
dc.publisher.cityMaryland Heights, MOpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherAcademic Presspt_BR
dc.date.issued2015pt_BR
dc.date.monthofcirculationJan.pt_BR
dc.identifier.citationStructural And Magnetic Properties Of The La2-xcaxcoiro6 Double Perovskite Series. Academic Press Inc Elsevier Science, v. 221, p. 373-377 JAN-2015.pt_BR
dc.language.isoengpt_BR
dc.description.volume221pt_BR
dc.description.firstpage373pt_BR
dc.description.lastpage377pt_BR
dc.rightsfechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0022-4596pt_BR
dc.identifier.eissn1095-726Xpt_BR
dc.identifier.doi10.1016/j.jssc.2014.10.019pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0022459614004617pt_BR
dc.description.sponsorshipCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsorshipCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIORpt_BR
dc.description.sponsorshipFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOpt_BR
dc.description.sponsorshipFAPERJ - FUNDAÇÃO CARLOS CHAGAS FILHO DE AMPARO À PESQUISA DO ESTADO DO RIO DE JANEIROpt_BR
dc.description.sponsorship1CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsorship1CAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIORpt_BR
dc.description.sponsorship1FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOpt_BR
dc.description.sponsorship1FAPERJ - FUNDAÇÃO CARLOS CHAGAS FILHO DE AMPARO À PESQUISA DO ESTADO DO RIO DE JANEIROpt_BR
dc.description.sponsordocumentnumberCNPq [470.613/2012-2]pt
dc.description.sponsordocumentnumber470.613/2012-2pt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.description.sponsordocumentnumber2006/60440-0, 2007/50968-0, 2012/04870-7pt_BR
dc.description.sponsordocumentnumber111.382/2013pt_BR
dc.date.available2016-06-07T13:14:16Z-
dc.date.accessioned2016-06-07T13:14:16Z-
dc.description.provenanceMade available in DSpace on 2016-06-07T13:14:16Z (GMT). No. of bitstreams: 1 wos_000347263700052.pdf: 834147 bytes, checksum: 455bfd4724618e22be20e0361d36f00a (MD5) Previous issue date: 2015 Bitstreams deleted on 2020-09-02T13:39:54Z: wos_000347263700052.pdf,. Added 1 bitstream(s) on 2020-09-02T13:43:52Z : No. of bitstreams: 1 000347263700052.pdf: 906622 bytes, checksum: 4cea7196b79b1728be3c6339b440a1e3 (MD5)en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/241595-
dc.contributor.departmentDepartamento de Eletrônica Quânticapt_BR
dc.contributor.departmentDepartamento de Eletrônica Quânticapt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.identifier.source000347263700052pt_BR
dc.creator.orcid0000-0002-8980-080Xpt_BR
dc.creator.orcid0000-0002-0529-9932pt_BR
dc.type.formArtigopt_BR
dc.description.sponsorNoteThis work was supported by the Brazilian funding agencies CNPq (Grant no. 470.613/2012-2), CAPES, FAPESP (Grants nos. 2006/60440-0, 2007/50968-0, 2012/04870-7) and FAPERJ (Grant no. 111.382/2013). CBPF X-ray laboratory is acknowledged for concession of equipment time.pt_BR
Appears in Collections:IFGW - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000347263700052.pdf885.37 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.