Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals

Autores
Haberkorn, Nestor Fabian; Kim, Jeehoon; Gofryk, K.; Ronning, F.; Sefat, A. S.; Fang, L.; Welp, U.; Kwok, W. K.; Civale, L.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the effect of heavy ion irradiation (1.4-GeV Pb) on the vortex matter in Ba(Fe0.92Co0.08)2As2 single crystals by SQUID magnetometry. The defects created by the irradiation are discontinuous amorphous tracks, resulting in an effective track density smaller than 25% of the nominal doses. We observe large increases in the critical current density (Jc), ranging from a factor of ~ 3 at low magnetic fields to a factor of ~ 10 at fields close to 1 T after irradiation with a nominal fluence of B= 3.5 T. From the normalized flux creep rates (S) and the Maley analysis, we determine that the Jc increase can be mainly attributed to a large increment in the pinning energy, from < 50 K to approx. 500 K, while the glassy exponent u changes from ~ 1.5 to < 1. Although the enhancement of Jc is substantial in the entire temperature range and S is strongly suppressed, the artificial pinning landscape induced by the irradiation does not modify significantly the crossover to fast creep in the field-temperature vortex phase diagram.
Fil: Haberkorn, Nestor Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Kim, Jeehoon. Pohang University of Science and Techonlogy; Corea del Sur
Fil: Gofryk, K.. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Fil: Ronning, F.. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Fil: Sefat, A. S.. Oak Ridge National Laboratory; Estados Unidos
Fil: Fang, L.. Argonne National Laboratory; Estados Unidos
Fil: Welp, U.. Argonne National Laboratory; Estados Unidos
Fil: Kwok, W. K.. Argonne National Laboratory; Estados Unidos
Fil: Civale, L.. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Materia
Single Crystals
Superconductivity
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:11336/43931
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/43931
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystalsHaberkorn, Nestor FabianKim, JeehoonGofryk, K.Ronning, F.Sefat, A. S.Fang, L.Welp, U.Kwok, W. K.Civale, L.Single CrystalsSuperconductivityIrradiationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the effect of heavy ion irradiation (1.4-GeV Pb) on the vortex matter in Ba(Fe0.92Co0.08)2As2 single crystals by SQUID magnetometry. The defects created by the irradiation are discontinuous amorphous tracks, resulting in an effective track density smaller than 25% of the nominal doses. We observe large increases in the critical current density (Jc), ranging from a factor of ~ 3 at low magnetic fields to a factor of ~ 10 at fields close to 1 T after irradiation with a nominal fluence of B= 3.5 T. From the normalized flux creep rates (S) and the Maley analysis, we determine that the Jc increase can be mainly attributed to a large increment in the pinning energy, from < 50 K to approx. 500 K, while the glassy exponent u changes from ~ 1.5 to < 1. Although the enhancement of Jc is substantial in the entire temperature range and S is strongly suppressed, the artificial pinning landscape induced by the irradiation does not modify significantly the crossover to fast creep in the field-temperature vortex phase diagram.Fil: Haberkorn, Nestor Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Kim, Jeehoon. Pohang University of Science and Techonlogy; Corea del SurFil: Gofryk, K.. Los Alamos National High Magnetic Field Laboratory; Estados UnidosFil: Ronning, F.. Los Alamos National High Magnetic Field Laboratory; Estados UnidosFil: Sefat, A. S.. Oak Ridge National Laboratory; Estados UnidosFil: Fang, L.. Argonne National Laboratory; Estados UnidosFil: Welp, U.. Argonne National Laboratory; Estados UnidosFil: Kwok, W. K.. Argonne National Laboratory; Estados UnidosFil: Civale, L.. Los Alamos National High Magnetic Field Laboratory; Estados UnidosIOP Publishing2015-05-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43931Haberkorn, Nestor Fabian; Kim, Jeehoon; Gofryk, K.; Ronning, F.; Sefat, A. S.; et al.; Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals; IOP Publishing; Superconductor Science And Technology; 28; 5; 8-5-2015; 55011-550180953-2048CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0953-2048/28/5/055011info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-2048/28/5/055011/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:52:59Zoai:ri.conicet.gov.ar:11336/43931instacron: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:34982025-10-15 14:52:59.762CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
title Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
spellingShingle Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
Haberkorn, Nestor Fabian
Single Crystals
Superconductivity
Irradiation
title_short Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
title_full Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
title_fullStr Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
title_full_unstemmed Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
title_sort Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals
dc.creator.none.fl_str_mv Haberkorn, Nestor Fabian
Kim, Jeehoon
Gofryk, K.
Ronning, F.
Sefat, A. S.
Fang, L.
Welp, U.
Kwok, W. K.
Civale, L.
author Haberkorn, Nestor Fabian
author_facet Haberkorn, Nestor Fabian
Kim, Jeehoon
Gofryk, K.
Ronning, F.
Sefat, A. S.
Fang, L.
Welp, U.
Kwok, W. K.
Civale, L.
author_role author
author2 Kim, Jeehoon
Gofryk, K.
Ronning, F.
Sefat, A. S.
Fang, L.
Welp, U.
Kwok, W. K.
Civale, L.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Single Crystals
Superconductivity
Irradiation
topic Single Crystals
Superconductivity
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 We investigate the effect of heavy ion irradiation (1.4-GeV Pb) on the vortex matter in Ba(Fe0.92Co0.08)2As2 single crystals by SQUID magnetometry. The defects created by the irradiation are discontinuous amorphous tracks, resulting in an effective track density smaller than 25% of the nominal doses. We observe large increases in the critical current density (Jc), ranging from a factor of ~ 3 at low magnetic fields to a factor of ~ 10 at fields close to 1 T after irradiation with a nominal fluence of B= 3.5 T. From the normalized flux creep rates (S) and the Maley analysis, we determine that the Jc increase can be mainly attributed to a large increment in the pinning energy, from < 50 K to approx. 500 K, while the glassy exponent u changes from ~ 1.5 to < 1. Although the enhancement of Jc is substantial in the entire temperature range and S is strongly suppressed, the artificial pinning landscape induced by the irradiation does not modify significantly the crossover to fast creep in the field-temperature vortex phase diagram.
Fil: Haberkorn, Nestor Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Kim, Jeehoon. Pohang University of Science and Techonlogy; Corea del Sur
Fil: Gofryk, K.. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Fil: Ronning, F.. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Fil: Sefat, A. S.. Oak Ridge National Laboratory; Estados Unidos
Fil: Fang, L.. Argonne National Laboratory; Estados Unidos
Fil: Welp, U.. Argonne National Laboratory; Estados Unidos
Fil: Kwok, W. K.. Argonne National Laboratory; Estados Unidos
Fil: Civale, L.. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
description We investigate the effect of heavy ion irradiation (1.4-GeV Pb) on the vortex matter in Ba(Fe0.92Co0.08)2As2 single crystals by SQUID magnetometry. The defects created by the irradiation are discontinuous amorphous tracks, resulting in an effective track density smaller than 25% of the nominal doses. We observe large increases in the critical current density (Jc), ranging from a factor of ~ 3 at low magnetic fields to a factor of ~ 10 at fields close to 1 T after irradiation with a nominal fluence of B= 3.5 T. From the normalized flux creep rates (S) and the Maley analysis, we determine that the Jc increase can be mainly attributed to a large increment in the pinning energy, from < 50 K to approx. 500 K, while the glassy exponent u changes from ~ 1.5 to < 1. Although the enhancement of Jc is substantial in the entire temperature range and S is strongly suppressed, the artificial pinning landscape induced by the irradiation does not modify significantly the crossover to fast creep in the field-temperature vortex phase diagram.
publishDate 2015
dc.date.none.fl_str_mv 2015-05-08
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/11336/43931
Haberkorn, Nestor Fabian; Kim, Jeehoon; Gofryk, K.; Ronning, F.; Sefat, A. S.; et al.; Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals; IOP Publishing; Superconductor Science And Technology; 28; 5; 8-5-2015; 55011-55018
0953-2048
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43931
identifier_str_mv Haberkorn, Nestor Fabian; Kim, Jeehoon; Gofryk, K.; Ronning, F.; Sefat, A. S.; et al.; Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe2As2 single crystals; IOP Publishing; Superconductor Science And Technology; 28; 5; 8-5-2015; 55011-55018
0953-2048
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-2048/28/5/055011
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-2048/28/5/055011/meta
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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_ 1846083059218120704
score 12.891075

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