Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites

Detalhes bibliográficos
Autor(a) principal: Araujo, Jose Humberto
Data de Publicação: 2006
Outros Autores: Soares, J. M., Machado, F. L. A., Cabral, F. A. O., Rodrigues, H. A. B., Ginani, Marconi Floripe
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/45361
Resumo: Nanocrystalline strontium and barium hexaferrites were produced by an ionic coordination reaction method. The average particle size obtained using the Rietveld X-ray refinement technique and by scanning electron microscopy was quite uniform and close to 50 nm. Transverse susceptibility measurements yielded both the coercive and the anisotropy magnetic fields. The results were analysed using a theoretical model proposed by Aharoni et al. [Bull. Res. Counc. Isr. A 6 (1957) 215]. This overall procedure seems to be quite useful in determining the distribution of the anisotropy magnetic fields in granular materials.
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spelling Araujo, Jose HumbertoSoares, J. M.Machado, F. L. A.Cabral, F. A. O.Rodrigues, H. A. B.Ginani, Marconi Floripe2021-12-14T16:32:13Z2021-12-14T16:32:13Z2006-10-01SOARES, J ; MACHADO, F ; DEARAUJO, J ; CABRAL, F ; RODRIGUES, H ; GINANI, M . Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites. Physica. B, Condensed Matter, v. 384, p. 85-87, 2006. DIsponível em: https://www.sciencedirect.com/science/article/pii/S092145260601026X?via%3Dihub#! Acesso em: 28 mai 2020. DOI: https://doi.org/10.1016/j.physb.2006.05.157Print: 0921-4526https://repositorio.ufrn.br/handle/123456789/4536110.1016/j.physb.2006.05.157Nanocrystalline strontium and barium hexaferrites were produced by an ionic coordination reaction method. The average particle size obtained using the Rietveld X-ray refinement technique and by scanning electron microscopy was quite uniform and close to 50 nm. Transverse susceptibility measurements yielded both the coercive and the anisotropy magnetic fields. The results were analysed using a theoretical model proposed by Aharoni et al. [Bull. Res. Counc. Isr. A 6 (1957) 215]. This overall procedure seems to be quite useful in determining the distribution of the anisotropy magnetic fields in granular materials.Nanocrystalline strontium and barium hexaferrites were produced by an ionic coordination reaction method. The average particle size obtained using the Rietveld X-ray refinement technique and by scanning electron microscopy was quite uniform and close to 50 nm. Transverse susceptibility measurements yielded both the coercive and the anisotropy magnetic fields. The results were analysed using a theoretical model proposed by Aharoni et al. [Bull. Res. Counc. Isr. A 6 (1957) 215]. This overall procedure seems to be quite useful in determining the distribution of the anisotropy magnetic fields in granular materials.ElsevierAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessHexaferritesNanoparticlesTransverse susceptibilityAnisotropy field and transverse susceptibility in nanocrystalline hexaferritesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALAnisotropyFieldAndTransverseSusceptibility_2006.pdfAnisotropyFieldAndTransverseSusceptibility_2006.pdfapplication/pdf347997https://repositorio.ufrn.br/bitstream/123456789/45361/1/AnisotropyFieldAndTransverseSusceptibility_2006.pdf3c0c49f5068dc6338264574dc813eec3MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufrn.br/bitstream/123456789/45361/2/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/45361/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53123456789/453612021-12-14 13:40:21.332oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-12-14T16:40:21Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
title Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
spellingShingle Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
Araujo, Jose Humberto
Hexaferrites
Nanoparticles
Transverse susceptibility
title_short Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
title_full Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
title_fullStr Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
title_full_unstemmed Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
title_sort Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites
author Araujo, Jose Humberto
author_facet Araujo, Jose Humberto
Soares, J. M.
Machado, F. L. A.
Cabral, F. A. O.
Rodrigues, H. A. B.
Ginani, Marconi Floripe
author_role author
author2 Soares, J. M.
Machado, F. L. A.
Cabral, F. A. O.
Rodrigues, H. A. B.
Ginani, Marconi Floripe
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Araujo, Jose Humberto
Soares, J. M.
Machado, F. L. A.
Cabral, F. A. O.
Rodrigues, H. A. B.
Ginani, Marconi Floripe
dc.subject.por.fl_str_mv Hexaferrites
Nanoparticles
Transverse susceptibility
topic Hexaferrites
Nanoparticles
Transverse susceptibility
description Nanocrystalline strontium and barium hexaferrites were produced by an ionic coordination reaction method. The average particle size obtained using the Rietveld X-ray refinement technique and by scanning electron microscopy was quite uniform and close to 50 nm. Transverse susceptibility measurements yielded both the coercive and the anisotropy magnetic fields. The results were analysed using a theoretical model proposed by Aharoni et al. [Bull. Res. Counc. Isr. A 6 (1957) 215]. This overall procedure seems to be quite useful in determining the distribution of the anisotropy magnetic fields in granular materials.
publishDate 2006
dc.date.issued.fl_str_mv 2006-10-01
dc.date.accessioned.fl_str_mv 2021-12-14T16:32:13Z
dc.date.available.fl_str_mv 2021-12-14T16:32:13Z
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 SOARES, J ; MACHADO, F ; DEARAUJO, J ; CABRAL, F ; RODRIGUES, H ; GINANI, M . Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites. Physica. B, Condensed Matter, v. 384, p. 85-87, 2006. DIsponível em: https://www.sciencedirect.com/science/article/pii/S092145260601026X?via%3Dihub#! Acesso em: 28 mai 2020. DOI: https://doi.org/10.1016/j.physb.2006.05.157
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/45361
dc.identifier.issn.none.fl_str_mv Print: 0921-4526
dc.identifier.doi.none.fl_str_mv 10.1016/j.physb.2006.05.157
identifier_str_mv SOARES, J ; MACHADO, F ; DEARAUJO, J ; CABRAL, F ; RODRIGUES, H ; GINANI, M . Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites. Physica. B, Condensed Matter, v. 384, p. 85-87, 2006. DIsponível em: https://www.sciencedirect.com/science/article/pii/S092145260601026X?via%3Dihub#! Acesso em: 28 mai 2020. DOI: https://doi.org/10.1016/j.physb.2006.05.157
Print: 0921-4526
10.1016/j.physb.2006.05.157
url https://repositorio.ufrn.br/handle/123456789/45361
dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
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rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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