Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation

Detalhes bibliográficos
Autor(a) principal: Geshev, Julian Penkov
Data de Publicação: 2008
Outros Autores: Nicolodi, Sabrina, Pereira, Luis Gustavo, Schmidt, Joao Edgar, Skumryev, Vassil, Suriñach, Santi, Baró, Maria Dolors
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/104520
Resumo: It is frequently reported that different measurement techniques may yield distinct values for the exchange anisotropy, being the difference of up to one order of magnitude on comparing magnetization loop with ac susceptibility measurements. We show, by both model calculations and a straight-forward experiment, that at least part of this difference could be attributed to big errors in the evaluation of the ferromagnet/ antiferromagnet exchange coupling strengths obtained by means of ac magnetic susceptibility and dc magnetometry measurements which are caused by neglecting the easy-axis distributions or underestimating the uniaxial anisotropy of the ferromagnetic material.
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spelling Geshev, Julian PenkovNicolodi, SabrinaPereira, Luis GustavoSchmidt, Joao EdgarSkumryev, VassilSuriñach, SantiBaró, Maria Dolors2014-10-14T02:13:03Z20081098-0121http://hdl.handle.net/10183/104520000637853It is frequently reported that different measurement techniques may yield distinct values for the exchange anisotropy, being the difference of up to one order of magnitude on comparing magnetization loop with ac susceptibility measurements. We show, by both model calculations and a straight-forward experiment, that at least part of this difference could be attributed to big errors in the evaluation of the ferromagnet/ antiferromagnet exchange coupling strengths obtained by means of ac magnetic susceptibility and dc magnetometry measurements which are caused by neglecting the easy-axis distributions or underestimating the uniaxial anisotropy of the ferromagnetic material.application/pdfengPhysical review. B, Condensed matter and materials physics. Woodbury. Vol. 77, no. 13 (Apr. 2008), 132407, 4p.FerromagnetismoAntiferromagnetismoMagnetizaçãoInteracoes eletromagneticasImpact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimationEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000637853.pdf.txt000637853.pdf.txtExtracted Texttext/plain21242http://www.lume.ufrgs.br/bitstream/10183/104520/2/000637853.pdf.txta7499cce4e1fb6b3f91d7b09e2509cf8MD52ORIGINAL000637853.pdf000637853.pdfTexto completo (inglês)application/pdf189105http://www.lume.ufrgs.br/bitstream/10183/104520/1/000637853.pdfbfe8d3cd67260f61f55e607b694e82b1MD51THUMBNAIL000637853.pdf.jpg000637853.pdf.jpgGenerated Thumbnailimage/jpeg2151http://www.lume.ufrgs.br/bitstream/10183/104520/3/000637853.pdf.jpg2dfb6396df4a4e787bdd6b065a6b3a36MD5310183/1045202023-09-20 03:30:16.917951oai:www.lume.ufrgs.br:10183/104520Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-20T06:30:16Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
title Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
spellingShingle Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
Geshev, Julian Penkov
Ferromagnetismo
Antiferromagnetismo
Magnetização
Interacoes eletromagneticas
title_short Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
title_full Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
title_fullStr Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
title_full_unstemmed Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
title_sort Impact of magnetization easy-axis distributions on the ferromagnet-antiferromagnet exchange-coupling estimation
author Geshev, Julian Penkov
author_facet Geshev, Julian Penkov
Nicolodi, Sabrina
Pereira, Luis Gustavo
Schmidt, Joao Edgar
Skumryev, Vassil
Suriñach, Santi
Baró, Maria Dolors
author_role author
author2 Nicolodi, Sabrina
Pereira, Luis Gustavo
Schmidt, Joao Edgar
Skumryev, Vassil
Suriñach, Santi
Baró, Maria Dolors
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Geshev, Julian Penkov
Nicolodi, Sabrina
Pereira, Luis Gustavo
Schmidt, Joao Edgar
Skumryev, Vassil
Suriñach, Santi
Baró, Maria Dolors
dc.subject.por.fl_str_mv Ferromagnetismo
Antiferromagnetismo
Magnetização
Interacoes eletromagneticas
topic Ferromagnetismo
Antiferromagnetismo
Magnetização
Interacoes eletromagneticas
description It is frequently reported that different measurement techniques may yield distinct values for the exchange anisotropy, being the difference of up to one order of magnitude on comparing magnetization loop with ac susceptibility measurements. We show, by both model calculations and a straight-forward experiment, that at least part of this difference could be attributed to big errors in the evaluation of the ferromagnet/ antiferromagnet exchange coupling strengths obtained by means of ac magnetic susceptibility and dc magnetometry measurements which are caused by neglecting the easy-axis distributions or underestimating the uniaxial anisotropy of the ferromagnetic material.
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2014-10-14T02:13:03Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/104520
dc.identifier.issn.pt_BR.fl_str_mv 1098-0121
dc.identifier.nrb.pt_BR.fl_str_mv 000637853
identifier_str_mv 1098-0121
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url http://hdl.handle.net/10183/104520
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physical review. B, Condensed matter and materials physics. Woodbury. Vol. 77, no. 13 (Apr. 2008), 132407, 4p.
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