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1. Identificação
Tipo de ReferênciaResumo em Evento (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3PGF728
Repositóriosid.inpe.br/mtc-m21b/2017/08.25.17.34
Última Atualização2017:10.10.13.22.45 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21b/2017/08.25.17.34.12
Última Atualização dos Metadados2021:09.16.02.59.26 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoPenaPePiSoRaAb:2017:PaTrPb
TítuloParallel transport in PbTe/PbEuTe quantum wells
Ano2017
Data de Acesso24 maio 2024
Tipo SecundárioPRE CN
Número de Arquivos1
Tamanho18 KiB
2. Contextualização
Autor1 Pena, Fernando Silva
2 Peres, Marcelos Lima
3 Pirralho, Marília de Jesus Pascoa
4 Soares, Demétrio Artur Werner
5 Rappl, Paulo Henrique de Oliveira
6 Abramof, Eduardo
Identificador de Curriculo1
2
3
4
5 8JMKD3MGP5W/3C9JJ37
6 8JMKD3MGP5W/3C9JGUH
Grupo1
2
3
4
5 LABAS-COCTE-INPE-MCTIC-GOV-BR
6 LABAS-COCTE-INPE-MCTIC-GOV-BR
Afiliação1
2
3
4
5 Instituto Nacional de Pesquisas Espaciais (INPE)
6 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1
2
3
4
5 paulo.rappl@inpe.br
6 eduardo.abramof@inpe.br
Nome do EventoBrazilian Workshop on Semiconductor Physics, 18 (BWSP)
Localização do EventoMaresias, SP
Data14-18 ago.
Título do LivroResumos
Histórico (UTC)2017-08-25 17:34:37 :: simone -> administrator :: 2017
2017-08-27 02:16:23 :: administrator -> simone :: 2017
2017-10-10 13:22:45 :: simone -> administrator :: 2017
2018-01-09 11:47:09 :: administrator -> simone :: 2017
2018-01-09 18:26:33 :: simone -> administrator :: 2017
2021-09-16 02:59:26 :: administrator -> simone :: 2017
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoPbTe based quantum wells (QW´s) has have been widely used to fabricate infrared (IR) lasers, IR detectors and thermogenerators [1]. Also, due to the large interest in spintronic devices developments, some efforts have been actually dispended to the investigation of spin-orbit (SO) coupling and quantum Hall effect in different nanostructures systems and PbTe based structures have emerged as potential candidates for the development of spintronic devices [2]. We investigated the photoconductivity effect in n-type PbTe/Pb1- xEuxTe quantum wells (QW´s) for temperature range of 300K to 77K using infrared light. The measurements revealed that at high temperatures the photoresponse has small amplitude. As temperature decreases it reaches a maximum amplitude around 100K which is 1000 times higher than the original before illumination. Unexpectedly, for further reducing of temperature, the amplitude starts to decrease. This behavior indicates the presence of a transition regime which is a result of parallel transport that occurs between the barriers and the QW even if the barriers are insulators. For temperatures below 100K, the transport is more effective in the QW where the signal decreasing can be associated to the electron-electron scattering due to the increasing of carrier concentration that occurs under illumination. For a further analysis, we performed Hall measurements under dark and light conditions and a general picture of the physical process is presented. We were also able to investigate the persistent photoconductivity effect which is a result of defect states present within the band structure of the QW and barriers. We hope that this investigation leads to the improvement of infrared sensor devices based on PbTe structures. [1] Pei, Y. L et al, Journal of Alloys and Compounds 514 (2012); [2] B. Grbic, et al, Phys. Rev. B 77, 125312 (2008).
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4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/3PGF728
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/3PGF728
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Grupo de Usuáriosself-uploading-INPE-MCTI-GOV-BR
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Grupo de Leitoresadministrator
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Visibilidadeshown
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Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
VinculaçãoTrabalho não Vinculado à Tese/Dissertação
Unidades Imediatamente Superiores8JMKD3MGPCW/3ESR3H2
Lista de Itens Citandosid.inpe.br/mtc-m21/2012/07.13.14.44.57 6
sid.inpe.br/mtc-m21/2012/07.13.14.57.50 4
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosarchivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarytype type url versiontype volume
7. Controle da descrição
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