Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers

Detalhes bibliográficos
Autor(a) principal: Geshev, Julian Penkov
Data de Publicação: 2012
Outros Autores: Gundel, Andre, Zaharieva, Ivelina, Schmidt, Joao Edgar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/165613
Resumo: The present work reports experimental and theoretical results for electrodeposited Co/Au(111) ultrathin layers with very specific magnetic behavior. We show that the observed two peaks in the out-of-plane magnetization versus deposition time variation could be explained by the remarkably high perpendicular anisotropy of the perimeter atoms of low-dimensional islands formed during the layer-by-layer growth, as compared to that of the surface atoms. Our results indicate that it is possible to sustain high anisotropy in very small grains without coming across the superparamagnetic limit, opening excellent opportunities for materials engineering.
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spelling Geshev, Julian PenkovGundel, AndreZaharieva, IvelinaSchmidt, Joao Edgar2017-08-23T02:31:03Z20120003-6951http://hdl.handle.net/10183/165613001024971The present work reports experimental and theoretical results for electrodeposited Co/Au(111) ultrathin layers with very specific magnetic behavior. We show that the observed two peaks in the out-of-plane magnetization versus deposition time variation could be explained by the remarkably high perpendicular anisotropy of the perimeter atoms of low-dimensional islands formed during the layer-by-layer growth, as compared to that of the surface atoms. Our results indicate that it is possible to sustain high anisotropy in very small grains without coming across the superparamagnetic limit, opening excellent opportunities for materials engineering.application/pdfengApplied physics letters. New York. Vol. 101, no. 13 (Sept. 2012), 132407, 4 p.Anisotropia magnética perpendicularEletrodeposiçãoFilmes finos magneticosEdge atoms effects on the perpendicular anisotropy of ultrathin magnetic layersEstrangeiroinfo: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:UFRGSORIGINAL001024971.pdf001024971.pdfTexto completo (inglês)application/pdf494883http://www.lume.ufrgs.br/bitstream/10183/165613/1/001024971.pdfb3954dd3a4dbd51028c8c3be219a4ec3MD51TEXT001024971.pdf.txt001024971.pdf.txtExtracted Texttext/plain22515http://www.lume.ufrgs.br/bitstream/10183/165613/2/001024971.pdf.txt49358459eba6628f3afaea0413cdb873MD52THUMBNAIL001024971.pdf.jpg001024971.pdf.jpgGenerated Thumbnailimage/jpeg1311http://www.lume.ufrgs.br/bitstream/10183/165613/3/001024971.pdf.jpgfb038c08d7239715c0b132b231de10d7MD5310183/1656132023-09-20 03:30:30.546376oai:www.lume.ufrgs.br:10183/165613Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-20T06:30:30Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
title Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
spellingShingle Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
Geshev, Julian Penkov
Anisotropia magnética perpendicular
Eletrodeposição
Filmes finos magneticos
title_short Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
title_full Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
title_fullStr Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
title_full_unstemmed Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
title_sort Edge atoms effects on the perpendicular anisotropy of ultrathin magnetic layers
author Geshev, Julian Penkov
author_facet Geshev, Julian Penkov
Gundel, Andre
Zaharieva, Ivelina
Schmidt, Joao Edgar
author_role author
author2 Gundel, Andre
Zaharieva, Ivelina
Schmidt, Joao Edgar
author2_role author
author
author
dc.contributor.author.fl_str_mv Geshev, Julian Penkov
Gundel, Andre
Zaharieva, Ivelina
Schmidt, Joao Edgar
dc.subject.por.fl_str_mv Anisotropia magnética perpendicular
Eletrodeposição
Filmes finos magneticos
topic Anisotropia magnética perpendicular
Eletrodeposição
Filmes finos magneticos
description The present work reports experimental and theoretical results for electrodeposited Co/Au(111) ultrathin layers with very specific magnetic behavior. We show that the observed two peaks in the out-of-plane magnetization versus deposition time variation could be explained by the remarkably high perpendicular anisotropy of the perimeter atoms of low-dimensional islands formed during the layer-by-layer growth, as compared to that of the surface atoms. Our results indicate that it is possible to sustain high anisotropy in very small grains without coming across the superparamagnetic limit, opening excellent opportunities for materials engineering.
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2017-08-23T02:31:03Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/165613
dc.identifier.issn.pt_BR.fl_str_mv 0003-6951
dc.identifier.nrb.pt_BR.fl_str_mv 001024971
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Applied physics letters. New York. Vol. 101, no. 13 (Sept. 2012), 132407, 4 p.
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