Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3

Detalhes bibliográficos
Autor(a) principal: Araújo, José Humberto de
Data de Publicação: 2006
Outros Autores: Moreira, M. L., Soares, J. M., Azevedo, W. M. de, Rodrigues, A. R., Machado, F. L. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/45362
Resumo: Nanoparticles of the manganite were synthesized using the Pechini process and their structural properties were characterized by X-ray diffraction (XRD) and by transmission electron microscopy (TEM). The magnetization of compacted powders was measured for temperatures in the range . The estimated average diameter (D) of the particles continuously increased from 20 to 95 nm when the calcination temperature was varied from 873 to 1273 K. From the magnetic data we found that the room temperature saturation magnetization scaled with while the magnetic transition temperature follows a power-law suggesting that the correlation length is mainly determined by the surface properties of the nanoparticles.
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spelling Araújo, José Humberto deMoreira, M. L.Soares, J. M.Azevedo, W. M. deRodrigues, A. R.Machado, F. L. A.2021-12-14T16:44:45Z2021-12-14T16:44:45Z2006-10-01MOREIRA, M ; SOARES, J ; DEAZEVEDO, W ; RODRIGUES, A ; MACHADO, F ; DEARAUJO, J . Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3. Physica. B, Condensed Matter, v. 384, p. 51-53, 2006. Disponível em: https://www.sciencedirect.com/science/article/pii/S0921452606009409?via%3Dihub Acesso em: 28 mai 2020. https://doi.org/10.1016/j.physb.2006.05.044Print: 0921-4526https://repositorio.ufrn.br/handle/123456789/4536210.1016/j.physb.2006.05.044Nanoparticles of the manganite were synthesized using the Pechini process and their structural properties were characterized by X-ray diffraction (XRD) and by transmission electron microscopy (TEM). The magnetization of compacted powders was measured for temperatures in the range . The estimated average diameter (D) of the particles continuously increased from 20 to 95 nm when the calcination temperature was varied from 873 to 1273 K. From the magnetic data we found that the room temperature saturation magnetization scaled with while the magnetic transition temperature follows a power-law suggesting that the correlation length is mainly determined by the surface properties of the nanoparticles.Nanoparticles of the manganite were synthesized using the Pechini process and their structural properties were characterized by X-ray diffraction (XRD) and by transmission electron microscopy (TEM). The magnetization of compacted powders was measured for temperatures in the range . The estimated average diameter (D) of the particles continuously increased from 20 to 95 nm when the calcination temperature was varied from 873 to 1273 K. From the magnetic data we found that the room temperature saturation magnetization scaled with while the magnetic transition temperature follows a power-law suggesting that the correlation length is mainly determined by the surface properties of the nanoparticles.ElsevierAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessManganitesNanoparticlesMagnetismStructural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufrn.br/bitstream/123456789/45362/2/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/45362/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53ORIGINALStructuralAndMagneticPropertiesOfNanoparticles_Araujo_2006.pdfStructuralAndMagneticPropertiesOfNanoparticles_Araujo_2006.pdfapplication/pdf356478https://repositorio.ufrn.br/bitstream/123456789/45362/1/StructuralAndMagneticPropertiesOfNanoparticles_Araujo_2006.pdf816adc05fea983f3a8b620fe87948c39MD51123456789/453622021-12-14 13:48:17.423oai:https://repositorio.ufrn.br:123456789/45362Tk9OLUVYQ0xVU0lWRSBESVNUUklCVVRJT04gTElDRU5TRQoKCkJ5IHNpZ25pbmcgYW5kIGRlbGl2ZXJpbmcgdGhpcyBsaWNlbnNlLCBNci4gKGF1dGhvciBvciBjb3B5cmlnaHQgaG9sZGVyKToKCgphKSBHcmFudHMgdGhlIFVuaXZlcnNpZGFkZSBGZWRlcmFsIFJpbyBHcmFuZGUgZG8gTm9ydGUgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgb2YKcmVwcm9kdWNlLCBjb252ZXJ0IChhcyBkZWZpbmVkIGJlbG93KSwgY29tbXVuaWNhdGUgYW5kIC8gb3IKZGlzdHJpYnV0ZSB0aGUgZGVsaXZlcmVkIGRvY3VtZW50IChpbmNsdWRpbmcgYWJzdHJhY3QgLyBhYnN0cmFjdCkgaW4KZGlnaXRhbCBvciBwcmludGVkIGZvcm1hdCBhbmQgaW4gYW55IG1lZGl1bS4KCmIpIERlY2xhcmVzIHRoYXQgdGhlIGRvY3VtZW50IHN1Ym1pdHRlZCBpcyBpdHMgb3JpZ2luYWwgd29yaywgYW5kIHRoYXQKeW91IGhhdmUgdGhlIHJpZ2h0IHRvIGdyYW50IHRoZSByaWdodHMgY29udGFpbmVkIGluIHRoaXMgbGljZW5zZS4gRGVjbGFyZXMKdGhhdCB0aGUgZGVsaXZlcnkgb2YgdGhlIGRvY3VtZW50IGRvZXMgbm90IGluZnJpbmdlLCBhcyBmYXIgYXMgaXQgaXMKdGhlIHJpZ2h0cyBvZiBhbnkgb3RoZXIgcGVyc29uIG9yIGVudGl0eS4KCmMpIElmIHRoZSBkb2N1bWVudCBkZWxpdmVyZWQgY29udGFpbnMgbWF0ZXJpYWwgd2hpY2ggZG9lcyBub3QKcmlnaHRzLCBkZWNsYXJlcyB0aGF0IGl0IGhhcyBvYnRhaW5lZCBhdXRob3JpemF0aW9uIGZyb20gdGhlIGhvbGRlciBvZiB0aGUKY29weXJpZ2h0IHRvIGdyYW50IHRoZSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkbyBSaW8gR3JhbmRlIGRvIE5vcnRlIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdCB0aGlzIG1hdGVyaWFsIHdob3NlIHJpZ2h0cyBhcmUgb2YKdGhpcmQgcGFydGllcyBpcyBjbGVhcmx5IGlkZW50aWZpZWQgYW5kIHJlY29nbml6ZWQgaW4gdGhlIHRleHQgb3IKY29udGVudCBvZiB0aGUgZG9jdW1lbnQgZGVsaXZlcmVkLgoKSWYgdGhlIGRvY3VtZW50IHN1Ym1pdHRlZCBpcyBiYXNlZCBvbiBmdW5kZWQgb3Igc3VwcG9ydGVkIHdvcmsKYnkgYW5vdGhlciBpbnN0aXR1dGlvbiBvdGhlciB0aGFuIHRoZSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkbyBSaW8gR3JhbmRlIGRvIE5vcnRlLCBkZWNsYXJlcyB0aGF0IGl0IGhhcyBmdWxmaWxsZWQgYW55IG9ibGlnYXRpb25zIHJlcXVpcmVkIGJ5IHRoZSByZXNwZWN0aXZlIGFncmVlbWVudCBvciBhZ3JlZW1lbnQuCgpUaGUgVW5pdmVyc2lkYWRlIEZlZGVyYWwgZG8gUmlvIEdyYW5kZSBkbyBOb3J0ZSB3aWxsIGNsZWFybHkgaWRlbnRpZnkgaXRzIG5hbWUgKHMpIGFzIHRoZSBhdXRob3IgKHMpIG9yIGhvbGRlciAocykgb2YgdGhlIGRvY3VtZW50J3MgcmlnaHRzCmRlbGl2ZXJlZCwgYW5kIHdpbGwgbm90IG1ha2UgYW55IGNoYW5nZXMsIG90aGVyIHRoYW4gdGhvc2UgcGVybWl0dGVkIGJ5CnRoaXMgbGljZW5zZQo=Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-12-14T16:48:17Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
title Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
spellingShingle Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
Araújo, José Humberto de
Manganites
Nanoparticles
Magnetism
title_short Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
title_full Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
title_fullStr Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
title_full_unstemmed Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
title_sort Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3
author Araújo, José Humberto de
author_facet Araújo, José Humberto de
Moreira, M. L.
Soares, J. M.
Azevedo, W. M. de
Rodrigues, A. R.
Machado, F. L. A.
author_role author
author2 Moreira, M. L.
Soares, J. M.
Azevedo, W. M. de
Rodrigues, A. R.
Machado, F. L. A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Araújo, José Humberto de
Moreira, M. L.
Soares, J. M.
Azevedo, W. M. de
Rodrigues, A. R.
Machado, F. L. A.
dc.subject.por.fl_str_mv Manganites
Nanoparticles
Magnetism
topic Manganites
Nanoparticles
Magnetism
description Nanoparticles of the manganite were synthesized using the Pechini process and their structural properties were characterized by X-ray diffraction (XRD) and by transmission electron microscopy (TEM). The magnetization of compacted powders was measured for temperatures in the range . The estimated average diameter (D) of the particles continuously increased from 20 to 95 nm when the calcination temperature was varied from 873 to 1273 K. From the magnetic data we found that the room temperature saturation magnetization scaled with while the magnetic transition temperature follows a power-law suggesting that the correlation length is mainly determined by the surface properties of the nanoparticles.
publishDate 2006
dc.date.issued.fl_str_mv 2006-10-01
dc.date.accessioned.fl_str_mv 2021-12-14T16:44:45Z
dc.date.available.fl_str_mv 2021-12-14T16:44:45Z
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 MOREIRA, M ; SOARES, J ; DEAZEVEDO, W ; RODRIGUES, A ; MACHADO, F ; DEARAUJO, J . Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3. Physica. B, Condensed Matter, v. 384, p. 51-53, 2006. Disponível em: https://www.sciencedirect.com/science/article/pii/S0921452606009409?via%3Dihub Acesso em: 28 mai 2020. https://doi.org/10.1016/j.physb.2006.05.044
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/45362
dc.identifier.issn.none.fl_str_mv Print: 0921-4526
dc.identifier.doi.none.fl_str_mv 10.1016/j.physb.2006.05.044
identifier_str_mv MOREIRA, M ; SOARES, J ; DEAZEVEDO, W ; RODRIGUES, A ; MACHADO, F ; DEARAUJO, J . Structural and magnetic properties of nanoparticles of La2/3Sr1/3MnO3. Physica. B, Condensed Matter, v. 384, p. 51-53, 2006. Disponível em: https://www.sciencedirect.com/science/article/pii/S0921452606009409?via%3Dihub Acesso em: 28 mai 2020. https://doi.org/10.1016/j.physb.2006.05.044
Print: 0921-4526
10.1016/j.physb.2006.05.044
url https://repositorio.ufrn.br/handle/123456789/45362
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
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