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Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/85428
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampCoelho, Adelino de Aguiarpt_BR
dc.typeArtigopt_BR
dc.titleRoom temperature nonlinear magnetoelectric effect in lead-free and Nb-doped AlFeO3 compositionspt_BR
dc.contributor.authorCótica, L. F.pt_BR
dc.contributor.authorSantos, G. M.pt_BR
dc.contributor.authorFreitas, V. F.pt_BR
dc.contributor.authorCoelho, A. A.pt_BR
dc.contributor.authorPal, M.pt_BR
dc.contributor.authorSantos, I. A.pt_BR
dc.contributor.authorGarcia, D.pt_BR
dc.contributor.authorEiras, J. A.pt_BR
dc.contributor.authorGuo, R. Y.pt_BR
dc.contributor.authorBhalla, A. S.pt_BR
dc.subjectAnisotropia magnética, Ferroeletricidade, Óxidos de ferropt_BR
dc.subject.otherlanguageMagnetic anisotropy, Ferroelectricity, Iron oxidespt_BR
dc.description.abstractIt is still a challenging problem to obtain technologically useful materials displaying strong magnetoelectric coupling at room temperature. In the search for new effects and materials to achieve this kind of coupling, a nonlinear magnetoelectric effect was proposed in the magnetically disordered relaxor ferroelectric materials. In this context, the aluminum iron oxide (AlFeO3), a room temperature ferroelectric relaxor and magnetic spin glass compound, emerges as an attractive lead-free magnetoelectric material along with nonlinear magnetoelectric effects. In this work, static, dynamic, and temperature dependent ferroic and magnetoelectric properties in lead-free AlFeO3 and 2 at. Nb-doped AlFeO3 multiferroic magnetoelectric compositions are studied. Pyroelectric and magnetic measurements show changes in ferroelectric and magnetic states close to each other (∼200 K). The magnetoelectric coefficient behavior as a function of Hbias suggests a room temperature nonlinear magnetoelectric coupling in both single-phase and Nb-doped AlFeO3-based ceramic compositions.en
dc.description.abstractIt is still a challenging problem to obtain technologically useful materials displaying strong magnetoelectric coupling at room temperature. In the search for new effects and materials to achieve this kind of coupling, a nonlinear magnetoelectric effect was proposed in the magnetically disordered relaxor ferroelectric materials. In this context, the aluminum iron oxide ( AlFeO3), a room temperature ferroelectric relaxor and magnetic spin glass compound, emerges as an attractive lead-free magnetoelectric material along with nonlinear magnetoelectric effects. In this work, static, dynamic, and temperature dependent ferroic and magnetoelectric properties in lead-free AlFeO3 and 2 at.% Nb-doped AlFeO3 multiferroic magnetoelectric compositions are studied. Pyroelectric and magnetic measurements show changes in ferroelectric and magnetic states close to each other ( similar to 200 K). The magnetoelectric coefficient behavior as a function of Hbias suggests a room temperature nonlinear magnetoelectric coupling in both single-phase and Nb-doped AlFeO3-based ceramic compositions.pt_BR
dc.relation.ispartofJournal of applied physicspt_BR
dc.relation.ispartofabbreviationJ. appl. phys.pt_BR
dc.publisher.cityMelville, NYpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherAIP Publishingpt_BR
dc.date.issued2015pt_BR
dc.date.monthofcirculationFeb.pt_BR
dc.identifier.citationJournal Of Applied Physics. American Institute Of Physics Inc., v. 117, n. 6, p. - , 2015.pt_BR
dc.language.isoengpt_BR
dc.description.volume117pt_BR
dc.description.issuenumber6pt_BR
dc.description.firstpage1pt_BR
dc.description.lastpage7pt_BR
dc.rightsabertopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0021-8979pt_BR
dc.identifier.eissn1089-7550pt_BR
dc.identifier.doi10.1063/1.4908016pt_BR
dc.identifier.urlhttps://aip.scitation.org/doi/10.1063/1.4908016pt_BR
dc.description.sponsorshipCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsorshipFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOpt_BR
dc.description.sponsorshipFUNDAÇÃO ARAUCÁRIA DE APOIO AO DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO DO ESTADO DO PARANÁ - FAPPRpt_BR
dc.description.sponsorshipCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIORpt_BR
dc.description.sponsorship1CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsorship1FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOpt_BR
dc.description.sponsorship1FUNDAÇÃO ARAUCÁRIA DE APOIO AO DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO DO ESTADO DO PARANÁ - FAPPRpt_BR
dc.description.sponsorship1CAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIORpt_BR
dc.description.sponsordocumentnumber305129/2010-4pt_BR
dc.description.sponsordocumentnumber2008/04025-0pt_BR
dc.description.sponsordocumentnumber22825, 22870pt_BR
dc.description.sponsordocumentnumber082/2007pt_BR
dc.date.available2015-06-25T12:53:05Z
dc.date.available2015-11-26T15:06:17Z-
dc.date.accessioned2015-06-25T12:53:05Z
dc.date.accessioned2015-11-26T15:06:17Z-
dc.description.provenanceMade available in DSpace on 2015-06-25T12:53:05Z (GMT). No. of bitstreams: 1 2-s2.0-84923677619.pdf: 2064627 bytes, checksum: 20af4a46e2a9551252ceae74ede16c74 (MD5) Previous issue date: 2015 Bitstreams deleted on 2020-09-02T13:39:44Z: 2-s2.0-84923677619.pdf,. Added 1 bitstream(s) on 2020-09-02T13:43:37Z : No. of bitstreams: 2 000349846300026.pdf: 1798429 bytes, checksum: 4ac08b9a4aa88e2664fb799e729d38f8 (MD5) 2-s2.0-84923677619.pdf.txt: 29290 bytes, checksum: 64ae0b81962a06a19dc6ac7236228cb6 (MD5)en
dc.description.provenanceMade available in DSpace on 2015-11-26T15:06:17Z (GMT). No. of bitstreams: 2 2-s2.0-84923677619.pdf: 2064627 bytes, checksum: 20af4a46e2a9551252ceae74ede16c74 (MD5) 2-s2.0-84923677619.pdf.txt: 29290 bytes, checksum: 64ae0b81962a06a19dc6ac7236228cb6 (MD5) Previous issue date: 2015en
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/85428
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/85428-
dc.contributor.departmentDepartamento de Física Aplicadapt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.identifier.source000349846300026pt_BR
dc.creator.orcidSem informaçãopt_BR
dc.type.formArtigopt_BR
dc.identifier.articleid064104pt_BR
dc.description.sponsorNoteThe authors would like to thank the Brazilian agencies CNPq (proc. 305129/2010-4), FAPESP (proc. 2008/04025-0), Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Paraná (Prots. 22825 and 22870), and CAPES (PROCAD 082/2007) for financial support. L.F.C. also acknowledge UTSA under the INAMM/NSF program for hosting him.pt_BR
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