Superconducting Properties in Arrays of Nanostructured β-Gallium

Autores
Moura, K. O.; Pirota, K. R.; Béron, F.; Jesus, Camilo B. R.; Rosa, P. F. S.; Tobia, Dina; Pagliuso, P. G.; de Lima, O. F.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Samples of nanostructured β-Ga wires were synthesized by a novel method of metallic-flux nanonucleation. Several superconducting properties were observed, revealing the stabilization of a weak-coupling type-II-like superconductor (Tc Tc≈ 6.2 K) with a Ginzburg-Landau parameter κGL G L = 1.18. This contrasts the type-I superconductivity observed for the majority of Ga phases, including small spheres of β-Ga with diameters near 15 μm. Remarkably, our magnetization curves reveal a crossover field HD H D, where we propose that the Abrikosov vortices are exactly touching their neighbors inside the Ga nanowires. A phenomenological model is proposed to explain this result by assuming that only a single row of vortices is allowed inside a nanowire under perpendicular applied field, with an appreciable depletion of Cooper pair density at the nanowire edges. These results are expected to shed light on the growing area of superconductivity in nanostructured materials.
Fil: Moura, K. O.. Universidade Estadual de Campinas; Brasil
Fil: Pirota, K. R.. Universidade Estadual de Campinas; Brasil
Fil: Béron, F.. Universidade Estadual de Campinas; Brasil
Fil: Jesus, Camilo B. R.. Universidade Estadual de Campinas; Brasil. Universidade Federal de Sergipe; Brasil
Fil: Rosa, P. F. S.. Universidade Estadual de Campinas; Brasil. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Fil: Tobia, Dina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidade Estadual de Campinas; Brasil
Fil: Pagliuso, P. G.. Universidade Estadual de Campinas; Brasil
Fil: de Lima, O. F.. Universidade Estadual de Campinas; Brasil
Materia
BETA-Ga NANOSTRUCTURES
SUPERCONDUCTING NANOWIRES
METALLIC-FLUX NUCLEATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68440
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Superconducting Properties in Arrays of Nanostructured β-GalliumMoura, K. O.Pirota, K. R.Béron, F.Jesus, Camilo B. R.Rosa, P. F. S.Tobia, DinaPagliuso, P. G.de Lima, O. F.BETA-Ga NANOSTRUCTURESSUPERCONDUCTING NANOWIRESMETALLIC-FLUX NUCLEATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Samples of nanostructured β-Ga wires were synthesized by a novel method of metallic-flux nanonucleation. Several superconducting properties were observed, revealing the stabilization of a weak-coupling type-II-like superconductor (Tc Tc≈ 6.2 K) with a Ginzburg-Landau parameter κGL G L = 1.18. This contrasts the type-I superconductivity observed for the majority of Ga phases, including small spheres of β-Ga with diameters near 15 μm. Remarkably, our magnetization curves reveal a crossover field HD H D, where we propose that the Abrikosov vortices are exactly touching their neighbors inside the Ga nanowires. A phenomenological model is proposed to explain this result by assuming that only a single row of vortices is allowed inside a nanowire under perpendicular applied field, with an appreciable depletion of Cooper pair density at the nanowire edges. These results are expected to shed light on the growing area of superconductivity in nanostructured materials.Fil: Moura, K. O.. Universidade Estadual de Campinas; BrasilFil: Pirota, K. R.. Universidade Estadual de Campinas; BrasilFil: Béron, F.. Universidade Estadual de Campinas; BrasilFil: Jesus, Camilo B. R.. Universidade Estadual de Campinas; Brasil. Universidade Federal de Sergipe; BrasilFil: Rosa, P. F. S.. Universidade Estadual de Campinas; Brasil. Los Alamos National High Magnetic Field Laboratory; Estados UnidosFil: Tobia, Dina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidade Estadual de Campinas; BrasilFil: Pagliuso, P. G.. Universidade Estadual de Campinas; BrasilFil: de Lima, O. F.. Universidade Estadual de Campinas; BrasilNature Publishing Group2017-11-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68440Moura, K. O.; Pirota, K. R.; Béron, F.; Jesus, Camilo B. R.; Rosa, P. F. S.; et al.; Superconducting Properties in Arrays of Nanostructured β-Gallium; Nature Publishing Group; Scientific Reports; 7; 1; 10-11-2017; 1-72045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-017-15738-2info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-017-15738-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:28Zoai:ri.conicet.gov.ar:11336/68440instacron: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:34982025-09-29 10:22:29.027CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Superconducting Properties in Arrays of Nanostructured β-Gallium
title Superconducting Properties in Arrays of Nanostructured β-Gallium
spellingShingle Superconducting Properties in Arrays of Nanostructured β-Gallium
Moura, K. O.
BETA-Ga NANOSTRUCTURES
SUPERCONDUCTING NANOWIRES
METALLIC-FLUX NUCLEATION
title_short Superconducting Properties in Arrays of Nanostructured β-Gallium
title_full Superconducting Properties in Arrays of Nanostructured β-Gallium
title_fullStr Superconducting Properties in Arrays of Nanostructured β-Gallium
title_full_unstemmed Superconducting Properties in Arrays of Nanostructured β-Gallium
title_sort Superconducting Properties in Arrays of Nanostructured β-Gallium
dc.creator.none.fl_str_mv Moura, K. O.
Pirota, K. R.
Béron, F.
Jesus, Camilo B. R.
Rosa, P. F. S.
Tobia, Dina
Pagliuso, P. G.
de Lima, O. F.
author Moura, K. O.
author_facet Moura, K. O.
Pirota, K. R.
Béron, F.
Jesus, Camilo B. R.
Rosa, P. F. S.
Tobia, Dina
Pagliuso, P. G.
de Lima, O. F.
author_role author
author2 Pirota, K. R.
Béron, F.
Jesus, Camilo B. R.
Rosa, P. F. S.
Tobia, Dina
Pagliuso, P. G.
de Lima, O. F.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv BETA-Ga NANOSTRUCTURES
SUPERCONDUCTING NANOWIRES
METALLIC-FLUX NUCLEATION
topic BETA-Ga NANOSTRUCTURES
SUPERCONDUCTING NANOWIRES
METALLIC-FLUX NUCLEATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Samples of nanostructured β-Ga wires were synthesized by a novel method of metallic-flux nanonucleation. Several superconducting properties were observed, revealing the stabilization of a weak-coupling type-II-like superconductor (Tc Tc≈ 6.2 K) with a Ginzburg-Landau parameter κGL G L = 1.18. This contrasts the type-I superconductivity observed for the majority of Ga phases, including small spheres of β-Ga with diameters near 15 μm. Remarkably, our magnetization curves reveal a crossover field HD H D, where we propose that the Abrikosov vortices are exactly touching their neighbors inside the Ga nanowires. A phenomenological model is proposed to explain this result by assuming that only a single row of vortices is allowed inside a nanowire under perpendicular applied field, with an appreciable depletion of Cooper pair density at the nanowire edges. These results are expected to shed light on the growing area of superconductivity in nanostructured materials.
Fil: Moura, K. O.. Universidade Estadual de Campinas; Brasil
Fil: Pirota, K. R.. Universidade Estadual de Campinas; Brasil
Fil: Béron, F.. Universidade Estadual de Campinas; Brasil
Fil: Jesus, Camilo B. R.. Universidade Estadual de Campinas; Brasil. Universidade Federal de Sergipe; Brasil
Fil: Rosa, P. F. S.. Universidade Estadual de Campinas; Brasil. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
Fil: Tobia, Dina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidade Estadual de Campinas; Brasil
Fil: Pagliuso, P. G.. Universidade Estadual de Campinas; Brasil
Fil: de Lima, O. F.. Universidade Estadual de Campinas; Brasil
description Samples of nanostructured β-Ga wires were synthesized by a novel method of metallic-flux nanonucleation. Several superconducting properties were observed, revealing the stabilization of a weak-coupling type-II-like superconductor (Tc Tc≈ 6.2 K) with a Ginzburg-Landau parameter κGL G L = 1.18. This contrasts the type-I superconductivity observed for the majority of Ga phases, including small spheres of β-Ga with diameters near 15 μm. Remarkably, our magnetization curves reveal a crossover field HD H D, where we propose that the Abrikosov vortices are exactly touching their neighbors inside the Ga nanowires. A phenomenological model is proposed to explain this result by assuming that only a single row of vortices is allowed inside a nanowire under perpendicular applied field, with an appreciable depletion of Cooper pair density at the nanowire edges. These results are expected to shed light on the growing area of superconductivity in nanostructured materials.
publishDate 2017
dc.date.none.fl_str_mv 2017-11-10
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/11336/68440
Moura, K. O.; Pirota, K. R.; Béron, F.; Jesus, Camilo B. R.; Rosa, P. F. S.; et al.; Superconducting Properties in Arrays of Nanostructured β-Gallium; Nature Publishing Group; Scientific Reports; 7; 1; 10-11-2017; 1-7
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68440
identifier_str_mv Moura, K. O.; Pirota, K. R.; Béron, F.; Jesus, Camilo B. R.; Rosa, P. F. S.; et al.; Superconducting Properties in Arrays of Nanostructured β-Gallium; Nature Publishing Group; Scientific Reports; 7; 1; 10-11-2017; 1-7
2045-2322
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-017-15738-2
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-017-15738-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
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 13.070432

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