Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates

Detalhes bibliográficos
Autor(a) principal: Almeida, B. G.
Data de Publicação: 2004
Outros Autores: Pietka, A., Mendes, J. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/85656
Resumo: Strontium titanate thin films have been prepared at different oxygen pressures and with different post deposition annealing treatments. The films were deposited by laser ablation at room temperature on Si(001) substrates with a silica buffer layer. The as-deposited films are amorphous with smooth and uniform surface. As the annealing temperature increase they become more crystalline, presenting a cubic SrTiO3 phase. The infrared characterization show that the silica layer also grows due to the annealing. The characteristics of this SrTiO3 crystalline depend on the oxygen partial pressure. At low oxygen pressures the annealed films are polycrystalline. As the oxygen pressure increase the films become more textured so that at longer enough annealing times the films become (200) oriented. The results are discussed in terms of atomic diffusion in the films.
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spelling Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substratesSrTiO3AnnealingInfrared SpectroscopyModelingCiências Naturais::Ciências FísicasScience & TechnologyStrontium titanate thin films have been prepared at different oxygen pressures and with different post deposition annealing treatments. The films were deposited by laser ablation at room temperature on Si(001) substrates with a silica buffer layer. The as-deposited films are amorphous with smooth and uniform surface. As the annealing temperature increase they become more crystalline, presenting a cubic SrTiO3 phase. The infrared characterization show that the silica layer also grows due to the annealing. The characteristics of this SrTiO3 crystalline depend on the oxygen partial pressure. At low oxygen pressures the annealed films are polycrystalline. As the oxygen pressure increase the films become more textured so that at longer enough annealing times the films become (200) oriented. The results are discussed in terms of atomic diffusion in the films.(undefined)Taylor & FrancisUniversidade do MinhoAlmeida, B. G.Pietka, A.Mendes, J. A.20042004-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/85656engAlmeida, B. G., Pietka, A., & Mendes, J. A. (2004, January). Annealing Induced Ordering of SrTiO3 Thin Films Deposited by Laser Ablation Over Si Substrates. Integrated Ferroelectrics. Informa UK Limited. http://doi.org/10.1080/105845804904592971058-458710.1080/10584580490459297https://www.tandfonline.com/doi/full/10.1080/10584580490459297info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-29T01:20:09ZPortal AgregadorONG
dc.title.none.fl_str_mv Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
title Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
spellingShingle Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
Almeida, B. G.
SrTiO3
Annealing
Infrared Spectroscopy
Modeling
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
title_full Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
title_fullStr Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
title_full_unstemmed Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
title_sort Annealing induced ordering of SrTiO3 thin films deposited by laser ablation over Si substrates
author Almeida, B. G.
author_facet Almeida, B. G.
Pietka, A.
Mendes, J. A.
author_role author
author2 Pietka, A.
Mendes, J. A.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Almeida, B. G.
Pietka, A.
Mendes, J. A.
dc.subject.por.fl_str_mv SrTiO3
Annealing
Infrared Spectroscopy
Modeling
Ciências Naturais::Ciências Físicas
Science & Technology
topic SrTiO3
Annealing
Infrared Spectroscopy
Modeling
Ciências Naturais::Ciências Físicas
Science & Technology
description Strontium titanate thin films have been prepared at different oxygen pressures and with different post deposition annealing treatments. The films were deposited by laser ablation at room temperature on Si(001) substrates with a silica buffer layer. The as-deposited films are amorphous with smooth and uniform surface. As the annealing temperature increase they become more crystalline, presenting a cubic SrTiO3 phase. The infrared characterization show that the silica layer also grows due to the annealing. The characteristics of this SrTiO3 crystalline depend on the oxygen partial pressure. At low oxygen pressures the annealed films are polycrystalline. As the oxygen pressure increase the films become more textured so that at longer enough annealing times the films become (200) oriented. The results are discussed in terms of atomic diffusion in the films.
publishDate 2004
dc.date.none.fl_str_mv 2004
2004-01-01T00:00:00Z
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.uri.fl_str_mv https://hdl.handle.net/1822/85656
url https://hdl.handle.net/1822/85656
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Almeida, B. G., Pietka, A., & Mendes, J. A. (2004, January). Annealing Induced Ordering of SrTiO3 Thin Films Deposited by Laser Ablation Over Si Substrates. Integrated Ferroelectrics. Informa UK Limited. http://doi.org/10.1080/10584580490459297
1058-4587
10.1080/10584580490459297
https://www.tandfonline.com/doi/full/10.1080/10584580490459297
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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