Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor

Autores
Pasquini, G.; Serquis, A.; Moreno, A.J.; Serrano, G.; Civale, L.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Addition of nonsuperconducting phases, such as carbon nanotubes, can modify the superconducting properties of MgB 2 samples, improving the critical current density and upper critical field. A full understanding of the flux creep mechanism involved is crucial to the development of superconducting magnets in persistent mode, one of the main thrusts for the development of MgB 2 wires. In this paper we present a creep study in bulk MgB 2 samples, pure and with different amounts of carbon nanotubes additions. We conclude that the most consistent picture at low temperatures is a single vortex pinning regime, where the correlation length is limited by the grain size. We introduce a novel analysis that allows us to identify the region where the Anderson-Kim model is valid. © 2013 AIP Publishing LLC.
Fil:Pasquini, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Serquis, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Civale, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
J Appl Phys 2013;114(2)
Materia
Correlation lengths
Flux creep mechanism
Low temperatures
Persistent mode
Relaxation property
Single vortices
Superconducting properties
Upper critical fields
Creep
Superconducting magnets
Superconducting wire
Superconductivity
Carbon nanotubes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00218979_v114_n2_p_Pasquini
Acceder
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oai_identifier_str paperaa:paper_00218979_v114_n2_p_Pasquini
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductorPasquini, G.Serquis, A.Moreno, A.J.Serrano, G.Civale, L.Correlation lengthsFlux creep mechanismLow temperaturesPersistent modeRelaxation propertySingle vorticesSuperconducting propertiesUpper critical fieldsCreepSuperconducting magnetsSuperconducting wireSuperconductivityCarbon nanotubesAddition of nonsuperconducting phases, such as carbon nanotubes, can modify the superconducting properties of MgB 2 samples, improving the critical current density and upper critical field. A full understanding of the flux creep mechanism involved is crucial to the development of superconducting magnets in persistent mode, one of the main thrusts for the development of MgB 2 wires. In this paper we present a creep study in bulk MgB 2 samples, pure and with different amounts of carbon nanotubes additions. We conclude that the most consistent picture at low temperatures is a single vortex pinning regime, where the correlation length is limited by the grain size. We introduce a novel analysis that allows us to identify the region where the Anderson-Kim model is valid. © 2013 AIP Publishing LLC.Fil:Pasquini, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Serquis, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Civale, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00218979_v114_n2_p_PasquiniJ Appl Phys 2013;114(2)reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:43:03Zpaperaa:paper_00218979_v114_n2_p_PasquiniInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:43:04.516Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
title Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
spellingShingle Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
Pasquini, G.
Correlation lengths
Flux creep mechanism
Low temperatures
Persistent mode
Relaxation property
Single vortices
Superconducting properties
Upper critical fields
Creep
Superconducting magnets
Superconducting wire
Superconductivity
Carbon nanotubes
title_short Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
title_full Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
title_fullStr Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
title_full_unstemmed Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
title_sort Carbon nanotubes effects on the relaxation properties and critical current densities of MgB 2 superconductor
dc.creator.none.fl_str_mv Pasquini, G.
Serquis, A.
Moreno, A.J.
Serrano, G.
Civale, L.
author Pasquini, G.
author_facet Pasquini, G.
Serquis, A.
Moreno, A.J.
Serrano, G.
Civale, L.
author_role author
author2 Serquis, A.
Moreno, A.J.
Serrano, G.
Civale, L.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Correlation lengths
Flux creep mechanism
Low temperatures
Persistent mode
Relaxation property
Single vortices
Superconducting properties
Upper critical fields
Creep
Superconducting magnets
Superconducting wire
Superconductivity
Carbon nanotubes
topic Correlation lengths
Flux creep mechanism
Low temperatures
Persistent mode
Relaxation property
Single vortices
Superconducting properties
Upper critical fields
Creep
Superconducting magnets
Superconducting wire
Superconductivity
Carbon nanotubes
dc.description.none.fl_txt_mv Addition of nonsuperconducting phases, such as carbon nanotubes, can modify the superconducting properties of MgB 2 samples, improving the critical current density and upper critical field. A full understanding of the flux creep mechanism involved is crucial to the development of superconducting magnets in persistent mode, one of the main thrusts for the development of MgB 2 wires. In this paper we present a creep study in bulk MgB 2 samples, pure and with different amounts of carbon nanotubes additions. We conclude that the most consistent picture at low temperatures is a single vortex pinning regime, where the correlation length is limited by the grain size. We introduce a novel analysis that allows us to identify the region where the Anderson-Kim model is valid. © 2013 AIP Publishing LLC.
Fil:Pasquini, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Serquis, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Civale, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Addition of nonsuperconducting phases, such as carbon nanotubes, can modify the superconducting properties of MgB 2 samples, improving the critical current density and upper critical field. A full understanding of the flux creep mechanism involved is crucial to the development of superconducting magnets in persistent mode, one of the main thrusts for the development of MgB 2 wires. In this paper we present a creep study in bulk MgB 2 samples, pure and with different amounts of carbon nanotubes additions. We conclude that the most consistent picture at low temperatures is a single vortex pinning regime, where the correlation length is limited by the grain size. We introduce a novel analysis that allows us to identify the region where the Anderson-Kim model is valid. © 2013 AIP Publishing LLC.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00218979_v114_n2_p_Pasquini
url http://hdl.handle.net/20.500.12110/paper_00218979_v114_n2_p_Pasquini
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv J Appl Phys 2013;114(2)
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 13.070432

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