Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes

Detalhes bibliográficos
Autor(a) principal: Rocha,C. G.
Data de Publicação: 2004
Outros Autores: Pacheco,M., Barticevic,Z., Latgé,A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400030
Resumo: Nanotubes have been proved as promising candidates for many technological applications in the nanoscale word and different physical properties have been studied and measured along the few recent years. Here we investigate the role played by external magnetic and electric fields on the electronic properties of toroidal and cylindrical straight carbon nanotubes. A single-p band tight-binding Hamiltonian is used and two types of model-calculations are adopted: real-space renormalization techniques, based on Green function formalism, and straight diagonalization calculation. Both electric and magnetic fields may be properly applied, in different configurations, to modify the energy spectra and transport properties, providing metal-insulator transitions for particular tube geometries.
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spelling Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubesNanotubes have been proved as promising candidates for many technological applications in the nanoscale word and different physical properties have been studied and measured along the few recent years. Here we investigate the role played by external magnetic and electric fields on the electronic properties of toroidal and cylindrical straight carbon nanotubes. A single-p band tight-binding Hamiltonian is used and two types of model-calculations are adopted: real-space renormalization techniques, based on Green function formalism, and straight diagonalization calculation. Both electric and magnetic fields may be properly applied, in different configurations, to modify the energy spectra and transport properties, providing metal-insulator transitions for particular tube geometries.Sociedade Brasileira de Física2004-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400030Brazilian Journal of Physics v.34 n.2b 2004reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332004000400030info:eu-repo/semantics/openAccessRocha,C. G.Pacheco,M.Barticevic,Z.Latgé,A.eng2004-08-31T00:00:00Zoai:scielo:S0103-97332004000400030Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2004-08-31T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
title Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
spellingShingle Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
Rocha,C. G.
title_short Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
title_full Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
title_fullStr Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
title_full_unstemmed Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
title_sort Electric and magnetic field effects on electronic structure of straight and toroidal carbon nanotubes
author Rocha,C. G.
author_facet Rocha,C. G.
Pacheco,M.
Barticevic,Z.
Latgé,A.
author_role author
author2 Pacheco,M.
Barticevic,Z.
Latgé,A.
author2_role author
author
author
dc.contributor.author.fl_str_mv Rocha,C. G.
Pacheco,M.
Barticevic,Z.
Latgé,A.
description Nanotubes have been proved as promising candidates for many technological applications in the nanoscale word and different physical properties have been studied and measured along the few recent years. Here we investigate the role played by external magnetic and electric fields on the electronic properties of toroidal and cylindrical straight carbon nanotubes. A single-p band tight-binding Hamiltonian is used and two types of model-calculations are adopted: real-space renormalization techniques, based on Green function formalism, and straight diagonalization calculation. Both electric and magnetic fields may be properly applied, in different configurations, to modify the energy spectra and transport properties, providing metal-insulator transitions for particular tube geometries.
publishDate 2004
dc.date.none.fl_str_mv 2004-06-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400030
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400030
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332004000400030
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.34 n.2b 2004
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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