Indications for enhanced Auger-electron absorption in a hot-electron gas
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/99401 |
Resumo: | Solid-state Auger-electron angular distributions are known to be largely independent of the type of excitation, following roughly a cosine law for low ejection energies. In this Letter it is shown that the iontrack dynamics and the corresponding high electron temperatures lead to significant variations of these Auger distributions. Ratios for different degrees of inner-shell ionization versus angle are sensitive to the high-energy-deposition density. The ratios show a minimum for emission angles close to the ion-track direction, consistent with enhanced inelastic electron-energy losses or electron absorption, respectively. Thus Auger-electron yields are influenced by the spatial electronic excitation distribution. |
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Schiwietz, GregorRoth, MelanieCzerski, KonradStaufenbiel, FriedrichGrande, Pedro Luis2014-08-09T02:11:35Z20070031-9007http://hdl.handle.net/10183/99401000616562Solid-state Auger-electron angular distributions are known to be largely independent of the type of excitation, following roughly a cosine law for low ejection energies. In this Letter it is shown that the iontrack dynamics and the corresponding high electron temperatures lead to significant variations of these Auger distributions. Ratios for different degrees of inner-shell ionization versus angle are sensitive to the high-energy-deposition density. The ratios show a minimum for emission angles close to the ion-track direction, consistent with enhanced inelastic electron-energy losses or electron absorption, respectively. Thus Auger-electron yields are influenced by the spatial electronic excitation distribution.application/pdfengPhysical review letters. Vol. 99, no. 19 (Nov. 2007), 197602 4p.Poder de freamento nuclearCarbonoMetaisSólidosEspectros de elétrons AugerIndications for enhanced Auger-electron absorption in a hot-electron gasEstrangeiroinfo: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:UFRGSORIGINAL000616562.pdf000616562.pdfTexto completo (inglês)application/pdf358378http://www.lume.ufrgs.br/bitstream/10183/99401/1/000616562.pdf81df47388adfdf08266d51bafd244085MD51TEXT000616562.pdf.txt000616562.pdf.txtExtracted Texttext/plain20161http://www.lume.ufrgs.br/bitstream/10183/99401/2/000616562.pdf.txt42efeb15791bba21ae72d62ef080b2c5MD52THUMBNAIL000616562.pdf.jpg000616562.pdf.jpgGenerated Thumbnailimage/jpeg2122http://www.lume.ufrgs.br/bitstream/10183/99401/3/000616562.pdf.jpg16002cf900954242553066ef0197625dMD5310183/994012024-05-29 06:42:39.231173oai:www.lume.ufrgs.br:10183/99401Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-05-29T09:42:39Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
title |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
spellingShingle |
Indications for enhanced Auger-electron absorption in a hot-electron gas Schiwietz, Gregor Poder de freamento nuclear Carbono Metais Sólidos Espectros de elétrons Auger |
title_short |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
title_full |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
title_fullStr |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
title_full_unstemmed |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
title_sort |
Indications for enhanced Auger-electron absorption in a hot-electron gas |
author |
Schiwietz, Gregor |
author_facet |
Schiwietz, Gregor Roth, Melanie Czerski, Konrad Staufenbiel, Friedrich Grande, Pedro Luis |
author_role |
author |
author2 |
Roth, Melanie Czerski, Konrad Staufenbiel, Friedrich Grande, Pedro Luis |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Schiwietz, Gregor Roth, Melanie Czerski, Konrad Staufenbiel, Friedrich Grande, Pedro Luis |
dc.subject.por.fl_str_mv |
Poder de freamento nuclear Carbono Metais Sólidos Espectros de elétrons Auger |
topic |
Poder de freamento nuclear Carbono Metais Sólidos Espectros de elétrons Auger |
description |
Solid-state Auger-electron angular distributions are known to be largely independent of the type of excitation, following roughly a cosine law for low ejection energies. In this Letter it is shown that the iontrack dynamics and the corresponding high electron temperatures lead to significant variations of these Auger distributions. Ratios for different degrees of inner-shell ionization versus angle are sensitive to the high-energy-deposition density. The ratios show a minimum for emission angles close to the ion-track direction, consistent with enhanced inelastic electron-energy losses or electron absorption, respectively. Thus Auger-electron yields are influenced by the spatial electronic excitation distribution. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007 |
dc.date.accessioned.fl_str_mv |
2014-08-09T02:11:35Z |
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/10183/99401 |
dc.identifier.issn.pt_BR.fl_str_mv |
0031-9007 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000616562 |
identifier_str_mv |
0031-9007 000616562 |
url |
http://hdl.handle.net/10183/99401 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review letters. Vol. 99, no. 19 (Nov. 2007), 197602 4p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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