rf-SQUID measurements of anomalous Josephson effect

We discuss the response of an rf-SQUID formed by anomalous Josephson junctions embedded in a superconducting ring with a non-negligible inductance. We demonstrate that a properly sweeping in-plane magnetic field can cause both the total flux and the current circulating in the device to modulate and...

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Autores: Guarcello, Claudio, Citro, Roberta, Durante, Ofelia, Bergeret, F. Sebastian, Iorio, Andrea, Sanz-Fernández, Cristina, Strambini, Elia, Giazotto, Francesco, Braggio, Alessandro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/235535
Acceso en línea:http://hdl.handle.net/10261/235535
Access Level:acceso abierto
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spelling rf-SQUID measurements of anomalous Josephson effectGuarcello, ClaudioCitro, RobertaDurante, OfeliaBergeret, F. SebastianIorio, AndreaSanz-Fernández, CristinaStrambini, EliaGiazotto, FrancescoBraggio, AlessandroWe discuss the response of an rf-SQUID formed by anomalous Josephson junctions embedded in a superconducting ring with a non-negligible inductance. We demonstrate that a properly sweeping in-plane magnetic field can cause both the total flux and the current circulating in the device to modulate and to behave hysteretically. The bistable response of the system is analyzed as a function of the anomalous phase shift at different values of the screening parameter, in order to highlight the parameter range within which a hysteretic behavior can be observed. The magnetic flux piercing the SQUID ring is demonstrated to further modulate the hysteretical response of the system. Moreover, we show that the anomalous phase shift can be conveniently determined through the measurement of the out-of-plane magnetic field at which the device switches to the voltage state and the number of trapped flux quanta changes. Finally, we compare the response of two different device configurations, namely, a SQUID including only one or two anomalous junctions. In view of these results, the proposed device can be effectively used to detect and measure the anomalous Josephson effect.F.S.B., C.S.-F., and C.G. acknowledge funding by the Spanish Ministerio de Ciencia, Innovación, y Universidades (MICINN) (Project No. FIS2017-82804-P). F.S.B. acknowledges partial support by Grupos Consolidados UPV/EHU del Gobierno Vasco (Grant No. IT1249-19), and by EU’s Horizon 2020 research and innovation program under Grant Agreement No. 800923 (SUPERTED). The work of E.S. was supported by a Marie Curie Individual Fellowship (MSCA-IFEFST No. 660532-SuperMag). E.S., N.L., and F.G. acknowledge partial financial support from the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC Grant No. 615187-COMANCHE. E.S., A.I., N.L., F.S.B., and F.G. were partially supported by EU’s Horizon 2020 research and innovation program under Grant Agreement No. 800923 (SUPERTED). A.B. acknowledges the CNR-CONICET cooperation program Energy Conversion in Quantum Nanoscale Hybrid Devices, the SNS-WIS joint laboratory QUANTRA, funded by the Italian Ministry of Foreign Affairs and International Cooperation, and the Royal Society through the International Exchanges between the UK and Italy (GrantsNo. IES R3 170054 and No. IEC R2 192166).Peer reviewedAmerican Physical SocietyMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Universidad del País VascoEuropean CommissionEusko JaurlaritzaEuropean Research CouncilMinistero degli Affari Esteri e della Cooperazione InternazionaleRoyal Society (UK)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/235535reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FIS2017-82804-PFIS2017-82804-P/AEI/10.13039/501100011033info:eu-repo/grantAgreement/EC/H2020/800923info:eu-repo/grantAgreement/EC/H2020/660532info:eu-repo/grantAgreement/EC/FP7/615187info:eu-repo/grantAgreement/EC/H2020/800923https://doi.org/10.1103/PhysRevResearch.2.023165Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2355352026-05-22T06:33:51Z
dc.title.none.fl_str_mv rf-SQUID measurements of anomalous Josephson effect
title rf-SQUID measurements of anomalous Josephson effect
spellingShingle rf-SQUID measurements of anomalous Josephson effect
Guarcello, Claudio
title_short rf-SQUID measurements of anomalous Josephson effect
title_full rf-SQUID measurements of anomalous Josephson effect
title_fullStr rf-SQUID measurements of anomalous Josephson effect
title_full_unstemmed rf-SQUID measurements of anomalous Josephson effect
title_sort rf-SQUID measurements of anomalous Josephson effect
dc.creator.none.fl_str_mv Guarcello, Claudio
Citro, Roberta
Durante, Ofelia
Bergeret, F. Sebastian
Iorio, Andrea
Sanz-Fernández, Cristina
Strambini, Elia
Giazotto, Francesco
Braggio, Alessandro
author Guarcello, Claudio
author_facet Guarcello, Claudio
Citro, Roberta
Durante, Ofelia
Bergeret, F. Sebastian
Iorio, Andrea
Sanz-Fernández, Cristina
Strambini, Elia
Giazotto, Francesco
Braggio, Alessandro
author_role author
author2 Citro, Roberta
Durante, Ofelia
Bergeret, F. Sebastian
Iorio, Andrea
Sanz-Fernández, Cristina
Strambini, Elia
Giazotto, Francesco
Braggio, Alessandro
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Universidad del País Vasco
European Commission
Eusko Jaurlaritza
European Research Council
Ministero degli Affari Esteri e della Cooperazione Internazionale
Royal Society (UK)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description We discuss the response of an rf-SQUID formed by anomalous Josephson junctions embedded in a superconducting ring with a non-negligible inductance. We demonstrate that a properly sweeping in-plane magnetic field can cause both the total flux and the current circulating in the device to modulate and to behave hysteretically. The bistable response of the system is analyzed as a function of the anomalous phase shift at different values of the screening parameter, in order to highlight the parameter range within which a hysteretic behavior can be observed. The magnetic flux piercing the SQUID ring is demonstrated to further modulate the hysteretical response of the system. Moreover, we show that the anomalous phase shift can be conveniently determined through the measurement of the out-of-plane magnetic field at which the device switches to the voltage state and the number of trapped flux quanta changes. Finally, we compare the response of two different device configurations, namely, a SQUID including only one or two anomalous junctions. In view of these results, the proposed device can be effectively used to detect and measure the anomalous Josephson effect.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/235535
url http://hdl.handle.net/10261/235535
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FIS2017-82804-P
FIS2017-82804-P/AEI/10.13039/501100011033
info:eu-repo/grantAgreement/EC/H2020/800923
info:eu-repo/grantAgreement/EC/H2020/660532
info:eu-repo/grantAgreement/EC/FP7/615187
info:eu-repo/grantAgreement/EC/H2020/800923
https://doi.org/10.1103/PhysRevResearch.2.023165
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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