Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering

Detalhes bibliográficos
Autor(a) principal: Oliveira, Filipe André
Data de Publicação: 2010
Outros Autores: Cerqueira, M. F., Vasilevskiy, Mikhail, Viseu, T. M. R., Campos, J. Ayres de, Rolo, Anabela G., Martins, J. S., Sobolev, N. A., Alves, E.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/13630
Resumo: ZnO:Mn transparent thin films (thickness b1 μm) with the Mn contents ranging from 1.8 to 3.25 at.% were grown by RF magnetron co-sputtering. The films are nanocrystalline, with wurtzite-structure grains of a typical size of 20 nm and with a preferential orientation of the c-axis perpendicular to the surface. According to the Raman spectroscopy data, Mn mostly substitutes Zn in the lattice sites. In spite of these factors, the nanostructure and the Mn(Zn) substitution, that are considered favorable for ferromagnetism in this material, both magnetic resonance and Faraday effect measurements show paramagnetic behavior of the ZnO:Mn films and the absence of ferromagnetic order at room temperature.
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spelling Room temperature paramagnetism of ZnO:Mn films grown by RF-sputteringZnOMn-dopingMagnetic resonanceFaraday effectScience & TechnologyZnO:Mn transparent thin films (thickness b1 μm) with the Mn contents ranging from 1.8 to 3.25 at.% were grown by RF magnetron co-sputtering. The films are nanocrystalline, with wurtzite-structure grains of a typical size of 20 nm and with a preferential orientation of the c-axis perpendicular to the surface. According to the Raman spectroscopy data, Mn mostly substitutes Zn in the lattice sites. In spite of these factors, the nanostructure and the Mn(Zn) substitution, that are considered favorable for ferromagnetism in this material, both magnetic resonance and Faraday effect measurements show paramagnetic behavior of the ZnO:Mn films and the absence of ferromagnetic order at room temperature.FCT throughproject PTDC/FIS/72843/2006ElsevierUniversidade do MinhoOliveira, Filipe AndréCerqueira, M. F.Vasilevskiy, MikhailViseu, T. M. R.Campos, J. Ayres deRolo, Anabela G.Martins, J. S.Sobolev, N. A.Alves, E.20102010-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/13630eng0040-609010.1016/j.tsf.2009.12.043http://www.sciencedirect.com/science/article/pii/S0040609009020252info: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:RCAAP2023-07-21T12:36:15Zoai:repositorium.sdum.uminho.pt:1822/13630Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:32:16.514365Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
title Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
spellingShingle Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
Oliveira, Filipe André
ZnO
Mn-doping
Magnetic resonance
Faraday effect
Science & Technology
title_short Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
title_full Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
title_fullStr Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
title_full_unstemmed Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
title_sort Room temperature paramagnetism of ZnO:Mn films grown by RF-sputtering
author Oliveira, Filipe André
author_facet Oliveira, Filipe André
Cerqueira, M. F.
Vasilevskiy, Mikhail
Viseu, T. M. R.
Campos, J. Ayres de
Rolo, Anabela G.
Martins, J. S.
Sobolev, N. A.
Alves, E.
author_role author
author2 Cerqueira, M. F.
Vasilevskiy, Mikhail
Viseu, T. M. R.
Campos, J. Ayres de
Rolo, Anabela G.
Martins, J. S.
Sobolev, N. A.
Alves, E.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Oliveira, Filipe André
Cerqueira, M. F.
Vasilevskiy, Mikhail
Viseu, T. M. R.
Campos, J. Ayres de
Rolo, Anabela G.
Martins, J. S.
Sobolev, N. A.
Alves, E.
dc.subject.por.fl_str_mv ZnO
Mn-doping
Magnetic resonance
Faraday effect
Science & Technology
topic ZnO
Mn-doping
Magnetic resonance
Faraday effect
Science & Technology
description ZnO:Mn transparent thin films (thickness b1 μm) with the Mn contents ranging from 1.8 to 3.25 at.% were grown by RF magnetron co-sputtering. The films are nanocrystalline, with wurtzite-structure grains of a typical size of 20 nm and with a preferential orientation of the c-axis perpendicular to the surface. According to the Raman spectroscopy data, Mn mostly substitutes Zn in the lattice sites. In spite of these factors, the nanostructure and the Mn(Zn) substitution, that are considered favorable for ferromagnetism in this material, both magnetic resonance and Faraday effect measurements show paramagnetic behavior of the ZnO:Mn films and the absence of ferromagnetic order at room temperature.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01T00:00:00Z
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 http://hdl.handle.net/1822/13630
url http://hdl.handle.net/1822/13630
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0040-6090
10.1016/j.tsf.2009.12.043
http://www.sciencedirect.com/science/article/pii/S0040609009020252
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 Elsevier
publisher.none.fl_str_mv Elsevier
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 Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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