Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film

Autores
Kim, Jeehoon; Haberkorn, Nestor Fabian; Nazaretski, E.; de Paula, R.; Tan, Teng; Xi, X.X.; Tajima, T.; Movshovich, R.; Civale, L.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the influence of two-band superconductivity on the flux creep and the critical current densities of a MgB2 thin film. The small magnetic penetration depth of λ=50±10 nm at T=4 K is related to a clean π-band. We find a high self-field critical current density Jc, which is strongly reduced with applied magnetic field, and attribute this to suppression of the superconductivity in the π-band. The temperature dependence of the creep rate S (T) at low magnetic field can be explained by a simple Anderson-Kim mechanism. The system shows high pinning energies at low field that are strongly suppressed by high field.
Fil: Kim, Jeehoon. Institute for Basic Science; Corea del Sur. Pohang University of Science and Technology; Corea del Sur
Fil: Haberkorn, Nestor Fabian. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Nazaretski, E.. Brookhaven National Laboratory; Estados Unidos
Fil: de Paula, R.. Los Alamos National Laboratory; Estados Unidos
Fil: Tan, Teng. Temple University; Estados Unidos
Fil: Xi, X.X.. Temple University; Estados Unidos
Fil: Tajima, T.. Los Alamos National Laboratory; Estados Unidos
Fil: Movshovich, R.. Los Alamos National Laboratory; Estados Unidos
Fil: Civale, L.. Los Alamos National Laboratory; Estados Unidos
Materia
A. SUPERCONDUCTING MATERIALS
B. FILMS
C. MAGNETIC PENETRATION DEPTH
D. VORTEX PINNING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/127139
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/127139
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin filmKim, JeehoonHaberkorn, Nestor FabianNazaretski, E.de Paula, R.Tan, TengXi, X.X.Tajima, T.Movshovich, R.Civale, L.A. SUPERCONDUCTING MATERIALSB. FILMSC. MAGNETIC PENETRATION DEPTHD. VORTEX PINNINGhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the influence of two-band superconductivity on the flux creep and the critical current densities of a MgB2 thin film. The small magnetic penetration depth of λ=50±10 nm at T=4 K is related to a clean π-band. We find a high self-field critical current density Jc, which is strongly reduced with applied magnetic field, and attribute this to suppression of the superconductivity in the π-band. The temperature dependence of the creep rate S (T) at low magnetic field can be explained by a simple Anderson-Kim mechanism. The system shows high pinning energies at low field that are strongly suppressed by high field.Fil: Kim, Jeehoon. Institute for Basic Science; Corea del Sur. Pohang University of Science and Technology; Corea del SurFil: Haberkorn, Nestor Fabian. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Nazaretski, E.. Brookhaven National Laboratory; Estados UnidosFil: de Paula, R.. Los Alamos National Laboratory; Estados UnidosFil: Tan, Teng. Temple University; Estados UnidosFil: Xi, X.X.. Temple University; Estados UnidosFil: Tajima, T.. Los Alamos National Laboratory; Estados UnidosFil: Movshovich, R.. Los Alamos National Laboratory; Estados UnidosFil: Civale, L.. Los Alamos National Laboratory; Estados UnidosPergamon-Elsevier Science Ltd2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/127139Kim, Jeehoon; Haberkorn, Nestor Fabian; Nazaretski, E.; de Paula, R.; Tan, Teng; et al.; Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film; Pergamon-Elsevier Science Ltd; Solid State Communications; 204; 11-2015; 56-600038-1098CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0038109814004827info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ssc.2014.11.015info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:10:25Zoai:ri.conicet.gov.ar:11336/127139instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:10:26.079CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
title Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
spellingShingle Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
Kim, Jeehoon
A. SUPERCONDUCTING MATERIALS
B. FILMS
C. MAGNETIC PENETRATION DEPTH
D. VORTEX PINNING
title_short Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
title_full Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
title_fullStr Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
title_full_unstemmed Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
title_sort Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
dc.creator.none.fl_str_mv Kim, Jeehoon
Haberkorn, Nestor Fabian
Nazaretski, E.
de Paula, R.
Tan, Teng
Xi, X.X.
Tajima, T.
Movshovich, R.
Civale, L.
author Kim, Jeehoon
author_facet Kim, Jeehoon
Haberkorn, Nestor Fabian
Nazaretski, E.
de Paula, R.
Tan, Teng
Xi, X.X.
Tajima, T.
Movshovich, R.
Civale, L.
author_role author
author2 Haberkorn, Nestor Fabian
Nazaretski, E.
de Paula, R.
Tan, Teng
Xi, X.X.
Tajima, T.
Movshovich, R.
Civale, L.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv A. SUPERCONDUCTING MATERIALS
B. FILMS
C. MAGNETIC PENETRATION DEPTH
D. VORTEX PINNING
topic A. SUPERCONDUCTING MATERIALS
B. FILMS
C. MAGNETIC PENETRATION DEPTH
D. VORTEX PINNING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report the influence of two-band superconductivity on the flux creep and the critical current densities of a MgB2 thin film. The small magnetic penetration depth of λ=50±10 nm at T=4 K is related to a clean π-band. We find a high self-field critical current density Jc, which is strongly reduced with applied magnetic field, and attribute this to suppression of the superconductivity in the π-band. The temperature dependence of the creep rate S (T) at low magnetic field can be explained by a simple Anderson-Kim mechanism. The system shows high pinning energies at low field that are strongly suppressed by high field.
Fil: Kim, Jeehoon. Institute for Basic Science; Corea del Sur. Pohang University of Science and Technology; Corea del Sur
Fil: Haberkorn, Nestor Fabian. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Nazaretski, E.. Brookhaven National Laboratory; Estados Unidos
Fil: de Paula, R.. Los Alamos National Laboratory; Estados Unidos
Fil: Tan, Teng. Temple University; Estados Unidos
Fil: Xi, X.X.. Temple University; Estados Unidos
Fil: Tajima, T.. Los Alamos National Laboratory; Estados Unidos
Fil: Movshovich, R.. Los Alamos National Laboratory; Estados Unidos
Fil: Civale, L.. Los Alamos National Laboratory; Estados Unidos
description We report the influence of two-band superconductivity on the flux creep and the critical current densities of a MgB2 thin film. The small magnetic penetration depth of λ=50±10 nm at T=4 K is related to a clean π-band. We find a high self-field critical current density Jc, which is strongly reduced with applied magnetic field, and attribute this to suppression of the superconductivity in the π-band. The temperature dependence of the creep rate S (T) at low magnetic field can be explained by a simple Anderson-Kim mechanism. The system shows high pinning energies at low field that are strongly suppressed by high field.
publishDate 2015
dc.date.none.fl_str_mv 2015-11
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/11336/127139
Kim, Jeehoon; Haberkorn, Nestor Fabian; Nazaretski, E.; de Paula, R.; Tan, Teng; et al.; Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film; Pergamon-Elsevier Science Ltd; Solid State Communications; 204; 11-2015; 56-60
0038-1098
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127139
identifier_str_mv Kim, Jeehoon; Haberkorn, Nestor Fabian; Nazaretski, E.; de Paula, R.; Tan, Teng; et al.; Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film; Pergamon-Elsevier Science Ltd; Solid State Communications; 204; 11-2015; 56-60
0038-1098
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0038109814004827
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ssc.2014.11.015
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842980525275348992
score 12.993085

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