Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3
Autor(a) principal: | |
---|---|
Data de Publicação: | 2004 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/28982 |
Resumo: | The magnetic and transport properties of the compound La0.7Sr0.3Mn1-xFexO3(0.1 ≤ x ≤ 0.4) have been studied by means of electrical resistivity, AC magnetic susceptibility, and DC magneti- zation. At low concentrations (x ≤ 0.1), the system displays essentially para-to-ferromagnetic transitions as the temperature is decreased, although a decrease in the magnetic moment has been observed in previous studies at temperatures a little below TC. This ferromagnetism is explained by double exchange theory in terms of the formation of Mn+3/Mn+4 ions pairs in the system. At concentrations in the range 0.1 < x ≤ 0.4 the system is more complex. Increased Fe doping not only weakens the ferromagnetic (FM) order and augments the resistivity of the samples, but also induces the appearance of a reentrant spin glass phase at low temperatures (T < 60 K). Irreversibil- ity of the magnetization measured with zero field cooling and with field cooling has been ob- served. In addition, the AC susceptibility peak position varies with frequency. All these effects are characteristic of spin glass behavior. The results have been interpreted based in an increase of frustration due to increasing competition between FM Mn+3/Mn+4 interactions and antiferromagnetic interactions between ions at the boundaries of Fe clusters. |
id |
UFRN_7f34bf3baa9d17a3188cdfc1d05f89dd |
---|---|
oai_identifier_str |
oai:https://repositorio.ufrn.br:123456789/28982 |
network_acronym_str |
UFRN |
network_name_str |
Repositório Institucional da UFRN |
repository_id_str |
|
spelling |
Araújo, José Humberto deXavier Jr., M. M.Cabral, F. A. O.Dumelow, T.Coelho, A. A.2020-05-15T13:02:22Z2020-05-15T13:02:22Z2004ARAUJO, José Humberto de et al. Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-XFeXO 3. Materials Research, São Carlos, v. 7, n. 2, p. 355-357, 2004. ISSN 1980-5373. DOI https://doi.org/10.1590/S1516-14392004000200023. Disponivel em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200023&lng=en&tlng=en. Acesso em: 15 maio 2020.1516-1439 (online), 1980-5373 (print)https://repositorio.ufrn.br/jspui/handle/123456789/2898210.1590/S1516-14392004000200023The magnetic and transport properties of the compound La0.7Sr0.3Mn1-xFexO3(0.1 ≤ x ≤ 0.4) have been studied by means of electrical resistivity, AC magnetic susceptibility, and DC magneti- zation. At low concentrations (x ≤ 0.1), the system displays essentially para-to-ferromagnetic transitions as the temperature is decreased, although a decrease in the magnetic moment has been observed in previous studies at temperatures a little below TC. This ferromagnetism is explained by double exchange theory in terms of the formation of Mn+3/Mn+4 ions pairs in the system. At concentrations in the range 0.1 < x ≤ 0.4 the system is more complex. Increased Fe doping not only weakens the ferromagnetic (FM) order and augments the resistivity of the samples, but also induces the appearance of a reentrant spin glass phase at low temperatures (T < 60 K). Irreversibil- ity of the magnetization measured with zero field cooling and with field cooling has been ob- served. In addition, the AC susceptibility peak position varies with frequency. All these effects are characteristic of spin glass behavior. The results have been interpreted based in an increase of frustration due to increasing competition between FM Mn+3/Mn+4 interactions and antiferromagnetic interactions between ions at the boundaries of Fe clusters.The magnetic and transport properties of the compound La0.7Sr0.3Mn1-xFexO3(0.1 ≤ x ≤ 0.4) have been studied by means of electrical resistivity, AC magnetic susceptibility, and DC magneti- zation. At low concentrations (x ≤ 0.1), the system displays essentially para-to-ferromagnetic transitions as the temperature is decreased, although a decrease in the magnetic moment has been observed in previous studies at temperatures a little below TC. This ferromagnetism is explained by double exchange theory in terms of the formation of Mn+3/Mn+4 ions pairs in the system. At concentrations in the range 0.1 < x ≤ 0.4 the system is more complex. Increased Fe doping not only weakens the ferromagnetic (FM) order and augments the resistivity of the samples, but also induces the appearance of a reentrant spin glass phase at low temperatures (T < 60 K). Irreversibil- ity of the magnetization measured with zero field cooling and with field cooling has been ob- served. In addition, the AC susceptibility peak position varies with frequency. All these effects are characteristic of spin glass behavior. The results have been interpreted based in an increase of frustration due to increasing competition between FM Mn+3/Mn+4 interactions and antiferromagnetic interactions between ions at the boundaries of Fe clusters.Materials ResearchAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessspin glassmanganiterare earthsReentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALReentrantSpinGlassBehaviorInPolycrystalline_2004.pdfReentrantSpinGlassBehaviorInPolycrystalline_2004.pdfapplication/pdf545285https://repositorio.ufrn.br/bitstream/123456789/28982/1/ReentrantSpinGlassBehaviorInPolycrystalline_2004.pdfce25ee307c2d6872bffd1249fcf27880MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufrn.br/bitstream/123456789/28982/2/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/28982/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.txtReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.txtExtracted texttext/plain11674https://repositorio.ufrn.br/bitstream/123456789/28982/4/ReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.txt88e9b6e075c5411be0bc1b907633a589MD54THUMBNAILReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.jpgReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.jpgGenerated Thumbnailimage/jpeg1584https://repositorio.ufrn.br/bitstream/123456789/28982/5/ReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.jpg3cc1fdf9638eceeef32b1d5adb22feebMD55123456789/289822020-06-09 16:01:24.823oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-06-09T19:01:24Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
title |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
spellingShingle |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 Araújo, José Humberto de spin glass manganite rare earths |
title_short |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
title_full |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
title_fullStr |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
title_full_unstemmed |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
title_sort |
Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3 |
author |
Araújo, José Humberto de |
author_facet |
Araújo, José Humberto de Xavier Jr., M. M. Cabral, F. A. O. Dumelow, T. Coelho, A. A. |
author_role |
author |
author2 |
Xavier Jr., M. M. Cabral, F. A. O. Dumelow, T. Coelho, A. A. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Araújo, José Humberto de Xavier Jr., M. M. Cabral, F. A. O. Dumelow, T. Coelho, A. A. |
dc.subject.por.fl_str_mv |
spin glass manganite rare earths |
topic |
spin glass manganite rare earths |
description |
The magnetic and transport properties of the compound La0.7Sr0.3Mn1-xFexO3(0.1 ≤ x ≤ 0.4) have been studied by means of electrical resistivity, AC magnetic susceptibility, and DC magneti- zation. At low concentrations (x ≤ 0.1), the system displays essentially para-to-ferromagnetic transitions as the temperature is decreased, although a decrease in the magnetic moment has been observed in previous studies at temperatures a little below TC. This ferromagnetism is explained by double exchange theory in terms of the formation of Mn+3/Mn+4 ions pairs in the system. At concentrations in the range 0.1 < x ≤ 0.4 the system is more complex. Increased Fe doping not only weakens the ferromagnetic (FM) order and augments the resistivity of the samples, but also induces the appearance of a reentrant spin glass phase at low temperatures (T < 60 K). Irreversibil- ity of the magnetization measured with zero field cooling and with field cooling has been ob- served. In addition, the AC susceptibility peak position varies with frequency. All these effects are characteristic of spin glass behavior. The results have been interpreted based in an increase of frustration due to increasing competition between FM Mn+3/Mn+4 interactions and antiferromagnetic interactions between ions at the boundaries of Fe clusters. |
publishDate |
2004 |
dc.date.issued.fl_str_mv |
2004 |
dc.date.accessioned.fl_str_mv |
2020-05-15T13:02:22Z |
dc.date.available.fl_str_mv |
2020-05-15T13:02:22Z |
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 |
ARAUJO, José Humberto de et al. Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-XFeXO 3. Materials Research, São Carlos, v. 7, n. 2, p. 355-357, 2004. ISSN 1980-5373. DOI https://doi.org/10.1590/S1516-14392004000200023. Disponivel em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200023&lng=en&tlng=en. Acesso em: 15 maio 2020. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/28982 |
dc.identifier.issn.none.fl_str_mv |
1516-1439 (online), 1980-5373 (print) |
dc.identifier.doi.none.fl_str_mv |
10.1590/S1516-14392004000200023 |
identifier_str_mv |
ARAUJO, José Humberto de et al. Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-XFeXO 3. Materials Research, São Carlos, v. 7, n. 2, p. 355-357, 2004. ISSN 1980-5373. DOI https://doi.org/10.1590/S1516-14392004000200023. Disponivel em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200023&lng=en&tlng=en. Acesso em: 15 maio 2020. 1516-1439 (online), 1980-5373 (print) 10.1590/S1516-14392004000200023 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/28982 |
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 |
Materials Research |
publisher.none.fl_str_mv |
Materials Research |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
instname_str |
Universidade Federal do Rio Grande do Norte (UFRN) |
instacron_str |
UFRN |
institution |
UFRN |
reponame_str |
Repositório Institucional da UFRN |
collection |
Repositório Institucional da UFRN |
bitstream.url.fl_str_mv |
https://repositorio.ufrn.br/bitstream/123456789/28982/1/ReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf https://repositorio.ufrn.br/bitstream/123456789/28982/2/license_rdf https://repositorio.ufrn.br/bitstream/123456789/28982/3/license.txt https://repositorio.ufrn.br/bitstream/123456789/28982/4/ReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.txt https://repositorio.ufrn.br/bitstream/123456789/28982/5/ReentrantSpinGlassBehaviorInPolycrystalline_2004.pdf.jpg |
bitstream.checksum.fl_str_mv |
ce25ee307c2d6872bffd1249fcf27880 e39d27027a6cc9cb039ad269a5db8e34 e9597aa2854d128fd968be5edc8a28d9 88e9b6e075c5411be0bc1b907633a589 3cc1fdf9638eceeef32b1d5adb22feeb |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN) |
repository.mail.fl_str_mv |
|
_version_ |
1802117860117446656 |