Magnetic dichroism in core-level photoemission from Gd(0001)
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/95901 |
Resumo: | This work reports on magnetic dichroism in photoemission from the Gd 4l(l=s,p,d, f) core level of in-plane magnetized Gd films excited with linearly, circularly, and unpolarized light. Thin Gd films of about 100 ML thickness were evaporated onto a W(110) substrate at room temperature, and subsequently annealed to 700 K to form an ordered layer exhibiting a (0001) surface. The dichroism measurements were performed by physically rotating the sample azimuth so as to change the direction of the magnetization axis relative to the incident light. The magnetic dichroism asymmetries were obtained by calculating the normalized difference between spectra obtained with the two mutually orthogonal orientations of the magnetization. Strong asymmetries were observed, even if exciting the spectra by means of unpolarized light. The experimental results are compared to three-step photoemission cluster calculations based on a relativistic full potential algorithm respecting magnetic exchange. |
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Morais, JonderFecher, Gerhard H.Denecke, ReinhardHussain, ZahidFadley, Charles S.2014-06-03T02:03:26Z20000021-8979http://hdl.handle.net/10183/95901000329308This work reports on magnetic dichroism in photoemission from the Gd 4l(l=s,p,d, f) core level of in-plane magnetized Gd films excited with linearly, circularly, and unpolarized light. Thin Gd films of about 100 ML thickness were evaporated onto a W(110) substrate at room temperature, and subsequently annealed to 700 K to form an ordered layer exhibiting a (0001) surface. The dichroism measurements were performed by physically rotating the sample azimuth so as to change the direction of the magnetization axis relative to the incident light. The magnetic dichroism asymmetries were obtained by calculating the normalized difference between spectra obtained with the two mutually orthogonal orientations of the magnetization. Strong asymmetries were observed, even if exciting the spectra by means of unpolarized light. The experimental results are compared to three-step photoemission cluster calculations based on a relativistic full potential algorithm respecting magnetic exchange.application/pdfengJournal of applied physics. Melville. Vol. 87. no. 9 pt. 2 (May 2000), p. 4900-4902Níveis internosDicroismoGadolínioEstrutura magnéticaFilmes finos magneticosMagnetizaçãoFotoemissãoMagnetic dichroism in core-level photoemission from Gd(0001)Estrangeiroinfo: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:UFRGSORIGINAL000329308.pdf000329308.pdfTexto completo (inglês)application/pdf209173http://www.lume.ufrgs.br/bitstream/10183/95901/1/000329308.pdf71835f96f5121eb572db04afd9262c9dMD51TEXT000329308.pdf.txt000329308.pdf.txtExtracted Texttext/plain12972http://www.lume.ufrgs.br/bitstream/10183/95901/2/000329308.pdf.txt3be62fd6fe8d55bd4a056134fca8ebb8MD52THUMBNAIL000329308.pdf.jpg000329308.pdf.jpgGenerated Thumbnailimage/jpeg1550http://www.lume.ufrgs.br/bitstream/10183/95901/3/000329308.pdf.jpg5c8f440ce1c6b2dd97f57f710bb3b789MD5310183/959012023-07-20 03:35:35.564013oai:www.lume.ufrgs.br:10183/95901Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-20T06:35:35Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Magnetic dichroism in core-level photoemission from Gd(0001) |
title |
Magnetic dichroism in core-level photoemission from Gd(0001) |
spellingShingle |
Magnetic dichroism in core-level photoemission from Gd(0001) Morais, Jonder Níveis internos Dicroismo Gadolínio Estrutura magnética Filmes finos magneticos Magnetização Fotoemissão |
title_short |
Magnetic dichroism in core-level photoemission from Gd(0001) |
title_full |
Magnetic dichroism in core-level photoemission from Gd(0001) |
title_fullStr |
Magnetic dichroism in core-level photoemission from Gd(0001) |
title_full_unstemmed |
Magnetic dichroism in core-level photoemission from Gd(0001) |
title_sort |
Magnetic dichroism in core-level photoemission from Gd(0001) |
author |
Morais, Jonder |
author_facet |
Morais, Jonder Fecher, Gerhard H. Denecke, Reinhard Hussain, Zahid Fadley, Charles S. |
author_role |
author |
author2 |
Fecher, Gerhard H. Denecke, Reinhard Hussain, Zahid Fadley, Charles S. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Morais, Jonder Fecher, Gerhard H. Denecke, Reinhard Hussain, Zahid Fadley, Charles S. |
dc.subject.por.fl_str_mv |
Níveis internos Dicroismo Gadolínio Estrutura magnética Filmes finos magneticos Magnetização Fotoemissão |
topic |
Níveis internos Dicroismo Gadolínio Estrutura magnética Filmes finos magneticos Magnetização Fotoemissão |
description |
This work reports on magnetic dichroism in photoemission from the Gd 4l(l=s,p,d, f) core level of in-plane magnetized Gd films excited with linearly, circularly, and unpolarized light. Thin Gd films of about 100 ML thickness were evaporated onto a W(110) substrate at room temperature, and subsequently annealed to 700 K to form an ordered layer exhibiting a (0001) surface. The dichroism measurements were performed by physically rotating the sample azimuth so as to change the direction of the magnetization axis relative to the incident light. The magnetic dichroism asymmetries were obtained by calculating the normalized difference between spectra obtained with the two mutually orthogonal orientations of the magnetization. Strong asymmetries were observed, even if exciting the spectra by means of unpolarized light. The experimental results are compared to three-step photoemission cluster calculations based on a relativistic full potential algorithm respecting magnetic exchange. |
publishDate |
2000 |
dc.date.issued.fl_str_mv |
2000 |
dc.date.accessioned.fl_str_mv |
2014-06-03T02:03:26Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/95901 |
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0021-8979 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000329308 |
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0021-8979 000329308 |
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http://hdl.handle.net/10183/95901 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of applied physics. Melville. Vol. 87. no. 9 pt. 2 (May 2000), p. 4900-4902 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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