Wasp-waisted behavior in magnetic hysteresis curves of CoFe2O4 nanopowder at a low temperature: experimental evidence and theoretical approach

Detalhes bibliográficos
Autor(a) principal: Alves, Tibério Magno de Lima
Data de Publicação: 2017
Outros Autores: 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
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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spelling 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:123456789/29506Tk9OLUVYQ0xVU0lWRSBESVNUUklCVVRJT04gTElDRU5TRQoKCkJ5IHNpZ25pbmcgYW5kIGRlbGl2ZXJpbmcgdGhpcyBsaWNlbnNlLCBNci4gKGF1dGhvciBvciBjb3B5cmlnaHQgaG9sZGVyKToKCgphKSBHcmFudHMgdGhlIFVuaXZlcnNpZGFkZSBGZWRlcmFsIFJpbyBHcmFuZGUgZG8gTm9ydGUgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgb2YKcmVwcm9kdWNlLCBjb252ZXJ0IChhcyBkZWZpbmVkIGJlbG93KSwgY29tbXVuaWNhdGUgYW5kIC8gb3IKZGlzdHJpYnV0ZSB0aGUgZGVsaXZlcmVkIGRvY3VtZW50IChpbmNsdWRpbmcgYWJzdHJhY3QgLyBhYnN0cmFjdCkgaW4KZGlnaXRhbCBvciBwcmludGVkIGZvcm1hdCBhbmQgaW4gYW55IG1lZGl1bS4KCmIpIERlY2xhcmVzIHRoYXQgdGhlIGRvY3VtZW50IHN1Ym1pdHRlZCBpcyBpdHMgb3JpZ2luYWwgd29yaywgYW5kIHRoYXQKeW91IGhhdmUgdGhlIHJpZ2h0IHRvIGdyYW50IHRoZSByaWdodHMgY29udGFpbmVkIGluIHRoaXMgbGljZW5zZS4gRGVjbGFyZXMKdGhhdCB0aGUgZGVsaXZlcnkgb2YgdGhlIGRvY3VtZW50IGRvZXMgbm90IGluZnJpbmdlLCBhcyBmYXIgYXMgaXQgaXMKdGhlIHJpZ2h0cyBvZiBhbnkgb3RoZXIgcGVyc29uIG9yIGVudGl0eS4KCmMpIElmIHRoZSBkb2N1bWVudCBkZWxpdmVyZWQgY29udGFpbnMgbWF0ZXJpYWwgd2hpY2ggZG9lcyBub3QKcmlnaHRzLCBkZWNsYXJlcyB0aGF0IGl0IGhhcyBvYnRhaW5lZCBhdXRob3JpemF0aW9uIGZyb20gdGhlIGhvbGRlciBvZiB0aGUKY29weXJpZ2h0IHRvIGdyYW50IHRoZSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkbyBSaW8gR3JhbmRlIGRvIE5vcnRlIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdCB0aGlzIG1hdGVyaWFsIHdob3NlIHJpZ2h0cyBhcmUgb2YKdGhpcmQgcGFydGllcyBpcyBjbGVhcmx5IGlkZW50aWZpZWQgYW5kIHJlY29nbml6ZWQgaW4gdGhlIHRleHQgb3IKY29udGVudCBvZiB0aGUgZG9jdW1lbnQgZGVsaXZlcmVkLgoKSWYgdGhlIGRvY3VtZW50IHN1Ym1pdHRlZCBpcyBiYXNlZCBvbiBmdW5kZWQgb3Igc3VwcG9ydGVkIHdvcmsKYnkgYW5vdGhlciBpbnN0aXR1dGlvbiBvdGhlciB0aGFuIHRoZSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkbyBSaW8gR3JhbmRlIGRvIE5vcnRlLCBkZWNsYXJlcyB0aGF0IGl0IGhhcyBmdWxmaWxsZWQgYW55IG9ibGlnYXRpb25zIHJlcXVpcmVkIGJ5IHRoZSByZXNwZWN0aXZlIGFncmVlbWVudCBvciBhZ3JlZW1lbnQuCgpUaGUgVW5pdmVyc2lkYWRlIEZlZGVyYWwgZG8gUmlvIEdyYW5kZSBkbyBOb3J0ZSB3aWxsIGNsZWFybHkgaWRlbnRpZnkgaXRzIG5hbWUgKHMpIGFzIHRoZSBhdXRob3IgKHMpIG9yIGhvbGRlciAocykgb2YgdGhlIGRvY3VtZW50J3MgcmlnaHRzCmRlbGl2ZXJlZCwgYW5kIHdpbGwgbm90IG1ha2UgYW55IGNoYW5nZXMsIG90aGVyIHRoYW4gdGhvc2UgcGVybWl0dGVkIGJ5CnRoaXMgbGljZW5zZQo=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
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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
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
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reponame_str Repositório Institucional da UFRN
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