Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals

Autores
Haberkorn, Nestor Fabian; Maiorov, B.; Usov, I. O.; Weigand, M.; Hirata, W.; Miyasaka, S.; Tajima, S.; Chikumoto, N.; Tanabe, K.; Civale, Leonardo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we analyze the influence of random point defects introduced by 3 MeV proton irradiation on the critical current density (Jc) and vortex dynamics of a Ba(Fe0.925Co0.075)2As2 single crystal. The results show that at low temperatures (T) the irradiation produces an enhancement of Jc of up to 2.6 times. However the Jc (T) retention at different magnetic fields (H) in the elastic regime, estimated by the n exponent in Jc vs (1-(T/Tc)2)n, is poorer after the irradiations, due to the thermal softening of the pinning by the random point defects. We found that the elastic to plastic crossover and melting lines are only affected by the reduction of the superconducting critical temperature (Tc); they are exactly the same after rescaling the phase diagram by T/Tc. The pinning mechanisms in the single crystals can be associated with a mixed pinning landscape that produces a modulation in S(H,T) as a consequence of a fishtail or second peak in the magnetization.
Fil: Haberkorn, Nestor Fabian. Los Alamos National Laboratory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Maiorov, B.. Los Alamos National Laboratory; Estados Unidos
Fil: Usov, I. O.. Los Alamos National Laboratory; Estados Unidos
Fil: Weigand, M.. Los Alamos National Laboratory; Estados Unidos
Fil: Hirata, W.. Osaka University; Japón
Fil: Miyasaka, S.. Osaka University; Japón
Fil: Tajima, S.. Osaka University; Japón
Fil: Chikumoto, N.. International Superconductivity Technology Center. Superconductivity Research Laboratory; Japón
Fil: Tanabe, K.. International Superconductivity Technology Center. Superconductivity Research Laboratory; Japón
Fil: Civale, Leonardo. Los Alamos National Laboratory; Estados Unidos
Materia
Vortex Pinning
Irradiation
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:11336/11493
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/11493
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystalsHaberkorn, Nestor FabianMaiorov, B.Usov, I. O.Weigand, M.Hirata, W.Miyasaka, S.Tajima, S.Chikumoto, N.Tanabe, K.Civale, LeonardoVortex PinningIrradiationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work we analyze the influence of random point defects introduced by 3 MeV proton irradiation on the critical current density (Jc) and vortex dynamics of a Ba(Fe0.925Co0.075)2As2 single crystal. The results show that at low temperatures (T) the irradiation produces an enhancement of Jc of up to 2.6 times. However the Jc (T) retention at different magnetic fields (H) in the elastic regime, estimated by the n exponent in Jc vs (1-(T/Tc)2)n, is poorer after the irradiations, due to the thermal softening of the pinning by the random point defects. We found that the elastic to plastic crossover and melting lines are only affected by the reduction of the superconducting critical temperature (Tc); they are exactly the same after rescaling the phase diagram by T/Tc. The pinning mechanisms in the single crystals can be associated with a mixed pinning landscape that produces a modulation in S(H,T) as a consequence of a fishtail or second peak in the magnetization.Fil: Haberkorn, Nestor Fabian. Los Alamos National Laboratory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Maiorov, B.. Los Alamos National Laboratory; Estados UnidosFil: Usov, I. O.. Los Alamos National Laboratory; Estados UnidosFil: Weigand, M.. Los Alamos National Laboratory; Estados UnidosFil: Hirata, W.. Osaka University; JapónFil: Miyasaka, S.. Osaka University; JapónFil: Tajima, S.. Osaka University; JapónFil: Chikumoto, N.. International Superconductivity Technology Center. Superconductivity Research Laboratory; JapónFil: Tanabe, K.. International Superconductivity Technology Center. Superconductivity Research Laboratory; JapónFil: Civale, Leonardo. Los Alamos National Laboratory; Estados UnidosAmerican Physical Society2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11493Haberkorn, Nestor Fabian; Maiorov, B.; Usov, I. O. ; Weigand, M.; Hirata, W. ; et al.; Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals; American Physical Society; Physical Review B; 85; 1; 1-2012; 14522-145290163-1829enginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.85.014522info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1103/PhysRevB.85.014522info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:10:51Zoai:ri.conicet.gov.ar:11336/11493instacron: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:34982025-10-22 12:10:51.874CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
title Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
spellingShingle Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
Haberkorn, Nestor Fabian
Vortex Pinning
Irradiation
title_short Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
title_full Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
title_fullStr Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
title_full_unstemmed Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
title_sort Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals
dc.creator.none.fl_str_mv Haberkorn, Nestor Fabian
Maiorov, B.
Usov, I. O.
Weigand, M.
Hirata, W.
Miyasaka, S.
Tajima, S.
Chikumoto, N.
Tanabe, K.
Civale, Leonardo
author Haberkorn, Nestor Fabian
author_facet Haberkorn, Nestor Fabian
Maiorov, B.
Usov, I. O.
Weigand, M.
Hirata, W.
Miyasaka, S.
Tajima, S.
Chikumoto, N.
Tanabe, K.
Civale, Leonardo
author_role author
author2 Maiorov, B.
Usov, I. O.
Weigand, M.
Hirata, W.
Miyasaka, S.
Tajima, S.
Chikumoto, N.
Tanabe, K.
Civale, Leonardo
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Vortex Pinning
Irradiation
topic Vortex Pinning
Irradiation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we analyze the influence of random point defects introduced by 3 MeV proton irradiation on the critical current density (Jc) and vortex dynamics of a Ba(Fe0.925Co0.075)2As2 single crystal. The results show that at low temperatures (T) the irradiation produces an enhancement of Jc of up to 2.6 times. However the Jc (T) retention at different magnetic fields (H) in the elastic regime, estimated by the n exponent in Jc vs (1-(T/Tc)2)n, is poorer after the irradiations, due to the thermal softening of the pinning by the random point defects. We found that the elastic to plastic crossover and melting lines are only affected by the reduction of the superconducting critical temperature (Tc); they are exactly the same after rescaling the phase diagram by T/Tc. The pinning mechanisms in the single crystals can be associated with a mixed pinning landscape that produces a modulation in S(H,T) as a consequence of a fishtail or second peak in the magnetization.
Fil: Haberkorn, Nestor Fabian. Los Alamos National Laboratory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Maiorov, B.. Los Alamos National Laboratory; Estados Unidos
Fil: Usov, I. O.. Los Alamos National Laboratory; Estados Unidos
Fil: Weigand, M.. Los Alamos National Laboratory; Estados Unidos
Fil: Hirata, W.. Osaka University; Japón
Fil: Miyasaka, S.. Osaka University; Japón
Fil: Tajima, S.. Osaka University; Japón
Fil: Chikumoto, N.. International Superconductivity Technology Center. Superconductivity Research Laboratory; Japón
Fil: Tanabe, K.. International Superconductivity Technology Center. Superconductivity Research Laboratory; Japón
Fil: Civale, Leonardo. Los Alamos National Laboratory; Estados Unidos
description In this work we analyze the influence of random point defects introduced by 3 MeV proton irradiation on the critical current density (Jc) and vortex dynamics of a Ba(Fe0.925Co0.075)2As2 single crystal. The results show that at low temperatures (T) the irradiation produces an enhancement of Jc of up to 2.6 times. However the Jc (T) retention at different magnetic fields (H) in the elastic regime, estimated by the n exponent in Jc vs (1-(T/Tc)2)n, is poorer after the irradiations, due to the thermal softening of the pinning by the random point defects. We found that the elastic to plastic crossover and melting lines are only affected by the reduction of the superconducting critical temperature (Tc); they are exactly the same after rescaling the phase diagram by T/Tc. The pinning mechanisms in the single crystals can be associated with a mixed pinning landscape that produces a modulation in S(H,T) as a consequence of a fishtail or second peak in the magnetization.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/11493
Haberkorn, Nestor Fabian; Maiorov, B.; Usov, I. O. ; Weigand, M.; Hirata, W. ; et al.; Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals; American Physical Society; Physical Review B; 85; 1; 1-2012; 14522-14529
0163-1829
url http://hdl.handle.net/11336/11493
identifier_str_mv Haberkorn, Nestor Fabian; Maiorov, B.; Usov, I. O. ; Weigand, M.; Hirata, W. ; et al.; Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe0.925Co0.075)2As2 single crystals; American Physical Society; Physical Review B; 85; 1; 1-2012; 14522-14529
0163-1829
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.85.014522
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1103/PhysRevB.85.014522
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 American Physical Society
publisher.none.fl_str_mv American Physical Society
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
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score 12.982451

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