Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/29506 |
Resumo: | We theoretically and experimentally investigated wasp-waisted magnetic hysteresis curves at a low temperature for CoFe2O4 nanopowders. Our theoretical approach proposes a physical mechanism that leads to wasp-waisted behavior for a single magnetic phase with the same anisotropic field, contrary to that of typical multi-phase magnetic systems. Our simulations show that a combination of effects, namely easy-plane anisotropy configuration and dipolar interactions, results in a double peak in the magnetic susceptibility curve of a granular magnetic system. As experimental evidence of such an effect, we present a CoFe2O4 nanopowder and its structural and magnetic characterizations, which support a single magnetic phase. In addition, the evidence does not corroborate many explanations reported in the literature for wasp-waisted magnetic behavior. Our results provide evidence for a tetragonal crystalline phase of CoFe2O4 due to magneto-elastic coupling, recently reported in the literature |
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Alves, Tibério Magno de LimaAmorim, Bruno FerreiraTorres, Marco Antonio MoralesBezerra, Claudinor GomesMedeiros, Suzana Nóbrega deGastelois, Pedro LanaOuton, Luís Eugênio FernandezMacedo, Waldemar Augusto de Almeida2020-07-08T21:04:21Z2020-07-08T21:04:21Z2017-04-20ALVES, T.M.L.; AMORIM, B. F.; TORRES, M. A. M.; BEZERRA, C. G.; MEDEIROS, S. N. M.; GASTELOIS, P. L.; OUTON, L. E. F.; MACEDO, W. A. A.. Wasp-waisted behavior in magnetic hysteresis curves of CoFe 2 O 4nanopowder at a low temperature: experimental evidence and theoretical approach. RSC Advances, v. 7, p. 22187-22196, 2017. Disponível em: http://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C6RA28727A#!divAbstract. Acesso em: 06 jul. 2020.2046-2069https://repositorio.ufrn.br/jspui/handle/123456789/2950610.1039/C6RA28727ARoyal Society of ChemistryAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessNanopowdersEasy-plane anisotropyWasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approachinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe theoretically and experimentally investigated wasp-waisted magnetic hysteresis curves at a low temperature for CoFe2O4 nanopowders. Our theoretical approach proposes a physical mechanism that leads to wasp-waisted behavior for a single magnetic phase with the same anisotropic field, contrary to that of typical multi-phase magnetic systems. Our simulations show that a combination of effects, namely easy-plane anisotropy configuration and dipolar interactions, results in a double peak in the magnetic susceptibility curve of a granular magnetic system. As experimental evidence of such an effect, we present a CoFe2O4 nanopowder and its structural and magnetic characterizations, which support a single magnetic phase. In addition, the evidence does not corroborate many explanations reported in the literature for wasp-waisted magnetic behavior. Our results provide evidence for a tetragonal crystalline phase of CoFe2O4 due to magneto-elastic coupling, recently reported in the literatureengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALWaspwaistedBehaviorInMagnetic_bezerra_2017.pdfWaspwaistedBehaviorInMagnetic_bezerra_2017.pdfapplication/pdf2102666https://repositorio.ufrn.br/bitstream/123456789/29506/1/WaspwaistedBehaviorInMagnetic_bezerra_2017.pdfbb7e3b3a5dda9fbec9778cd2eebe3ecaMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/29506/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29506/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTWaspwaistedBehaviorInMagnetic_bezerra_2017.pdf.txtWaspwaistedBehaviorInMagnetic_bezerra_2017.pdf.txtExtracted texttext/plain43373https://repositorio.ufrn.br/bitstream/123456789/29506/4/WaspwaistedBehaviorInMagnetic_bezerra_2017.pdf.txt974d77a631462788dd0c42b0b45fa69dMD54THUMBNAILWaspwaistedBehaviorInMagnetic_bezerra_2017.pdf.jpgWaspwaistedBehaviorInMagnetic_bezerra_2017.pdf.jpgGenerated Thumbnailimage/jpeg1845https://repositorio.ufrn.br/bitstream/123456789/29506/5/WaspwaistedBehaviorInMagnetic_bezerra_2017.pdf.jpg054b458e2344eed2108d5d9454baa8e3MD55123456789/295062020-07-12 04:49:33.587oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-07-12T07:49:33Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
title |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
spellingShingle |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach Alves, Tibério Magno de Lima Nanopowders Easy-plane anisotropy |
title_short |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
title_full |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
title_fullStr |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
title_full_unstemmed |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
title_sort |
Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach |
author |
Alves, Tibério Magno de Lima |
author_facet |
Alves, Tibério Magno de Lima Amorim, Bruno Ferreira Torres, Marco Antonio Morales Bezerra, Claudinor Gomes Medeiros, Suzana Nóbrega de Gastelois, Pedro Lana Outon, Luís Eugênio Fernandez Macedo, Waldemar Augusto de Almeida |
author_role |
author |
author2 |
Amorim, Bruno Ferreira Torres, Marco Antonio Morales Bezerra, Claudinor Gomes Medeiros, Suzana Nóbrega de Gastelois, Pedro Lana Outon, Luís Eugênio Fernandez Macedo, Waldemar Augusto de Almeida |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Alves, Tibério Magno de Lima Amorim, Bruno Ferreira Torres, Marco Antonio Morales Bezerra, Claudinor Gomes Medeiros, Suzana Nóbrega de Gastelois, Pedro Lana Outon, Luís Eugênio Fernandez Macedo, Waldemar Augusto de Almeida |
dc.subject.por.fl_str_mv |
Nanopowders Easy-plane anisotropy |
topic |
Nanopowders Easy-plane anisotropy |
description |
We theoretically and experimentally investigated wasp-waisted magnetic hysteresis curves at a low temperature for CoFe2O4 nanopowders. Our theoretical approach proposes a physical mechanism that leads to wasp-waisted behavior for a single magnetic phase with the same anisotropic field, contrary to that of typical multi-phase magnetic systems. Our simulations show that a combination of effects, namely easy-plane anisotropy configuration and dipolar interactions, results in a double peak in the magnetic susceptibility curve of a granular magnetic system. As experimental evidence of such an effect, we present a CoFe2O4 nanopowder and its structural and magnetic characterizations, which support a single magnetic phase. In addition, the evidence does not corroborate many explanations reported in the literature for wasp-waisted magnetic behavior. Our results provide evidence for a tetragonal crystalline phase of CoFe2O4 due to magneto-elastic coupling, recently reported in the literature |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-04-20 |
dc.date.accessioned.fl_str_mv |
2020-07-08T21:04:21Z |
dc.date.available.fl_str_mv |
2020-07-08T21:04:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
ALVES, T.M.L.; AMORIM, B. F.; TORRES, M. A. M.; BEZERRA, C. G.; MEDEIROS, S. N. M.; GASTELOIS, P. L.; OUTON, L. E. F.; MACEDO, W. A. A.. Wasp-waisted behavior in magnetic hysteresis curves of CoFe 2 O 4nanopowder at a low temperature: experimental evidence and theoretical approach. RSC Advances, v. 7, p. 22187-22196, 2017. Disponível em: http://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C6RA28727A#!divAbstract. Acesso em: 06 jul. 2020. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/29506 |
dc.identifier.issn.none.fl_str_mv |
2046-2069 |
dc.identifier.doi.none.fl_str_mv |
10.1039/C6RA28727A |
identifier_str_mv |
ALVES, T.M.L.; AMORIM, B. F.; TORRES, M. A. M.; BEZERRA, C. G.; MEDEIROS, S. N. M.; GASTELOIS, P. L.; OUTON, L. E. F.; MACEDO, W. A. A.. Wasp-waisted behavior in magnetic hysteresis curves of CoFe 2 O 4nanopowder at a low temperature: experimental evidence and theoretical approach. RSC Advances, v. 7, p. 22187-22196, 2017. Disponível em: http://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C6RA28727A#!divAbstract. Acesso em: 06 jul. 2020. 2046-2069 10.1039/C6RA28727A |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/29506 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Royal Society of Chemistry |
publisher.none.fl_str_mv |
Royal Society of Chemistry |
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reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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UFRN |
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UFRN |
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Repositório Institucional da UFRN |
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Repositório Institucional da UFRN |
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