Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/329651
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampCoelho, Adelino de Aguiarpt_BR
dc.typeArtigopt_BR
dc.titleMagnetocaloric functional properties of Sm0.6Sr0.4MnO3 manganite due to advanced nanostructured morphologypt_BR
dc.contributor.authorAndrade, V. M.pt_BR
dc.contributor.authorPedro, S. S.pt_BR
dc.contributor.authorCaraballo Vivas, R. J.pt_BR
dc.contributor.authorRocco, D. L.pt_BR
dc.contributor.authorReis, M. S.pt_BR
dc.contributor.authorCampos, A. P. C.pt_BR
dc.contributor.authorCoelho, A. A.pt_BR
dc.contributor.authorEscote, M.pt_BR
dc.contributor.authorZenatti, A.pt_BR
dc.contributor.authorRossi, A. L.pt_BR
dc.subjectNanoestruturapt_BR
dc.subjectMagnetômetrospt_BR
dc.subjectÓxidospt_BR
dc.subject.otherlanguageMagnetic propertiespt_BR
dc.subject.otherlanguageNanostructurespt_BR
dc.subject.otherlanguageMagnetometerspt_BR
dc.subject.otherlanguageOxidespt_BR
dc.description.abstractThe magnetocaloric effect (MCE) is the key concept to produce new, advanced, freon-like free, low cost and environmental friendly magnetic refrigerators. Among several potential materials, Sm0.6Sr0.4MnO3 manganite presents one of the highest MCE value in comparison to all other known manganites, however, its studied was only concentrated on the bulk material. To overcame this lack of the information nanoparticles and nanotubes of that highlighted manganite were successfully produced by using a sol gel modified method. High resolution transmission electron microscopy revealed nanoparticle and nanotube diameters of 45 nm and 200 nm, respectively, and, in addition, this technique also showed that the wall of the nanotube is formed by the nanoparticles with 25 nm of diameter. The magnetocaloric potentials, Delta S-M versus T curves, of the nanostructures were obtained and they are broader than the their bulk counterpart. This increases the useful temperature range of a magnetic refrigerator. But also an undesired M-shape profile for the nanotube sample was observed, due to the rising of a super paramagnetic behavior. These results also evidenced the existence of a nanoparticle size threshold below which the advantage to make the transition wider is no longer valid.pt_BR
dc.relation.ispartofMaterials chemistry and physicspt_BR
dc.relation.ispartofabbreviationMater. chem. phys.pt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryHolandapt_BR
dc.publisherElsevierpt_BR
dc.date.issued2016pt_BR
dc.date.monthofcirculationApr.pt_BR
dc.identifier.citationMaterials Chemistry And Physics. Elsevier Science Sa, v. 172, p. 20 - 25, 2016.pt_BR
dc.language.isoengpt_BR
dc.description.volume172pt_BR
dc.description.firstpage20pt_BR
dc.description.lastpage25pt_BR
dc.rightsfechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0254-0584pt_BR
dc.identifier.eissn1879-3312pt_BR
dc.identifier.doi10.1016/j.matchemphys.2015.12.013pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0254058415304880pt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO CARLOS CHAGAS FILHO DE AMPARO À PESQUISA DO ESTADO DO RIO DE JANEIRO - FAPERJpt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorship1FAPERJ - FUNDAÇÃO CARLOS CHAGAS FILHO DE AMPARO À PESQUISA DO ESTADO DO RIO DE JANEIROpt_BR
dc.description.sponsorship1CAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIORpt_BR
dc.description.sponsorship1CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.date.available2017-11-13T13:55:29Z-
dc.date.accessioned2017-11-13T13:55:29Z-
dc.description.provenanceMade available in DSpace on 2017-11-13T13:55:29Z (GMT). No. of bitstreams: 1 000371370100004.pdf: 1892525 bytes, checksum: f7a1f254002126219ae94fdd063baa87 (MD5) Previous issue date: 2016 Bitstreams deleted on 2020-09-02T13:43:10Z: 000371370100004.pdf,. Added 1 bitstream(s) on 2020-09-02T13:47:37Z : No. of bitstreams: 1 000371370100004.pdf: 1965475 bytes, checksum: 7b5b4f4bf13bf77e9fe21cda9edeb783 (MD5)en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/329651-
dc.contributor.departmentDepartamento de Física Aplicadapt_BR
dc.contributor.unidadeInstituto de Física "Gleb Wataghin"pt_BR
dc.subject.keywordSol-gel growthpt_BR
dc.identifier.source000371370100004pt_BR
dc.creator.orcidSem informaçãopt_BR
dc.type.formArtigopt_BR
dc.description.sponsorNoteWe acknowledge FAPERJ, CAPES, CNPq and PROPPI-UFF for financial support.pt_BR
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