Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets

Hybrid magnetic arrays embedded in superconducting films are ideal systems to study the competition between different physical (such as the coherence length) and structural length scales such as are available in artificially produced structures. This interplay leads to oscillation in many magnetical...

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Autores: Gómez, A., Valle Granda, Javier del, González Herrera, Elvira María, Chiliotte, C. E., Carreira, Santiago, Bekeris, V., Prieto, J. L., Schuller, Ivan K., Vicent López, José Luis
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/35472
Acceso en línea:https://hdl.handle.net/20.500.14352/35472
Access Level:acceso abierto
Palabra clave:538.9
Weak links
Thin-films
Transition
Temperature
Lattices
Size
Dots
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
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oai_identifier_str oai:docta.ucm.es:20.500.14352/35472
network_acronym_str ES
network_name_str España
repository_id_str
spelling Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnetsGómez, A.Valle Granda, Javier delGonzález Herrera, Elvira MaríaChiliotte, C. E.Carreira, SantiagoBekeris, V.Prieto, J. L.Schuller, Ivan K.Vicent López, José Luis538.9Weak linksThin-filmsTransitionTemperatureLatticesSizeDotsFísica de materialesFísica del estado sólido2211 Física del Estado SólidoHybrid magnetic arrays embedded in superconducting films are ideal systems to study the competition between different physical (such as the coherence length) and structural length scales such as are available in artificially produced structures. This interplay leads to oscillation in many magnetically dependent superconducting properties such as the critical currents, resistivity and magnetization. These effects are generally analyzed using two distinct models based on vortex pinning or wire network. In this work, we show that for magnetic dot arrays, as opposed to antidot (i.e. holes) arrays, vortex pinning is the main mechanism for field induced oscillations in resistance R(H), critical current I-c(H), magnetization M(H) and ac-susceptibility chi(ac)(H) in a broad temperature range. Due to the coherence length divergence at T-c, a crossover to wire network behaviour is experimentally found. While pinning occurs in a wide temperature range up to T-c, wire network behaviour is only present in a very narrow temperature window close to T-c. In this temperature interval, contributions from both mechanisms are operational but can be experimentally distinguished.IOP Publishing LTDUniversidad Complutense de Madrid20142014-01-0120142014-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/35472reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/354722026-06-02T12:44:21Z
dc.title.none.fl_str_mv Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
title Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
spellingShingle Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
Gómez, A.
538.9
Weak links
Thin-films
Transition
Temperature
Lattices
Size
Dots
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
title_short Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
title_full Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
title_fullStr Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
title_full_unstemmed Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
title_sort Vortex pinning vs superconducting wire network: origin of periodic oscillations induced by applied magnetic fields in superconducting films with arrays of nanomagnets
dc.creator.none.fl_str_mv Gómez, A.
Valle Granda, Javier del
González Herrera, Elvira María
Chiliotte, C. E.
Carreira, Santiago
Bekeris, V.
Prieto, J. L.
Schuller, Ivan K.
Vicent López, José Luis
author Gómez, A.
author_facet Gómez, A.
Valle Granda, Javier del
González Herrera, Elvira María
Chiliotte, C. E.
Carreira, Santiago
Bekeris, V.
Prieto, J. L.
Schuller, Ivan K.
Vicent López, José Luis
author_role author
author2 Valle Granda, Javier del
González Herrera, Elvira María
Chiliotte, C. E.
Carreira, Santiago
Bekeris, V.
Prieto, J. L.
Schuller, Ivan K.
Vicent López, José Luis
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 538.9
Weak links
Thin-films
Transition
Temperature
Lattices
Size
Dots
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
topic 538.9
Weak links
Thin-films
Transition
Temperature
Lattices
Size
Dots
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
description Hybrid magnetic arrays embedded in superconducting films are ideal systems to study the competition between different physical (such as the coherence length) and structural length scales such as are available in artificially produced structures. This interplay leads to oscillation in many magnetically dependent superconducting properties such as the critical currents, resistivity and magnetization. These effects are generally analyzed using two distinct models based on vortex pinning or wire network. In this work, we show that for magnetic dot arrays, as opposed to antidot (i.e. holes) arrays, vortex pinning is the main mechanism for field induced oscillations in resistance R(H), critical current I-c(H), magnetization M(H) and ac-susceptibility chi(ac)(H) in a broad temperature range. Due to the coherence length divergence at T-c, a crossover to wire network behaviour is experimentally found. While pinning occurs in a wide temperature range up to T-c, wire network behaviour is only present in a very narrow temperature window close to T-c. In this temperature interval, contributions from both mechanisms are operational but can be experimentally distinguished.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01
2014
2014-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/35472
url https://hdl.handle.net/20.500.14352/35472
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Publishing LTD
publisher.none.fl_str_mv IOP Publishing LTD
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409776484483072
score 15,300719

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