Supercurrent transport through 1e -periodic full-shell Coulomb islands

We experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shells. Applying flux along the wire yields a series of destructive Little-Parks lobes with reentrant supercurrent. We find C...

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Autores: Razmadze, D., Seoane Souto, Rubén, O'Farrell, E.C.T., Krogstrup, P., Leijnse, M., Marcus, C.M., Vaitiekėnas, S.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/393468
Acesso em linha:http://hdl.handle.net/10261/393468
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184146518&doi=10.1103%2fPhysRevB.109.L041302&partnerID=40&md5=931d97d281ccc3133fb122c9c308fef2
Access Level:acceso abierto
Palavra-chave:Bound states
Coulomb blockade
Density of states
Josephson effect
Superconductivity
Josephson junctions
Nanowires
Quantum dots
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spelling Supercurrent transport through 1e -periodic full-shell Coulomb islandsRazmadze, D.Seoane Souto, RubénO'Farrell, E.C.T.Krogstrup, P.Leijnse, M.Marcus, C.M.Vaitiekėnas, S.Bound statesCoulomb blockadeDensity of statesJosephson effectSuperconductivityJosephson junctionsNanowiresQuantum dotsWe experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shells. Applying flux along the wire yields a series of destructive Little-Parks lobes with reentrant supercurrent. We find Coulomb blockade with 2e peak spacing in the zeroth lobe and 1e average spacing, with regions of significant even-odd modulation, in the first lobe. Evolution of Coulomb-peak amplitude through the first lobe is consistent with a theoretical model of supercurrent carried predominantly by zero-energy states in the leads and the island. © 2024 American Physical Society.We thank C. S & oslash;rensen for contributions to materials growth and S. Upadhyay for assistance with nanofabrication. We acknowledge support from research grants (Projects No. 43951 and No. 53097) from VILLUM FONDEN, the Danish National Research Foundation, the Spanish CM "Talento Program" (Project No. 2022-T1/IND-24070) , European Research Council (Grants Agreement No. 716655 and No. 856526) , and NanoLund.Peer reviewedAmerican Physical SocietyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/393468https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184146518&doi=10.1103%2fPhysRevB.109.L041302&partnerID=40&md5=931d97d281ccc3133fb122c9c308fef2reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésPhysical Review Bhttps://doi.org/10.1103/PhysRevB.109.L041302Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3934682026-05-22T06:33:51Z
dc.title.none.fl_str_mv Supercurrent transport through 1e -periodic full-shell Coulomb islands
title Supercurrent transport through 1e -periodic full-shell Coulomb islands
spellingShingle Supercurrent transport through 1e -periodic full-shell Coulomb islands
Razmadze, D.
Bound states
Coulomb blockade
Density of states
Josephson effect
Superconductivity
Josephson junctions
Nanowires
Quantum dots
title_short Supercurrent transport through 1e -periodic full-shell Coulomb islands
title_full Supercurrent transport through 1e -periodic full-shell Coulomb islands
title_fullStr Supercurrent transport through 1e -periodic full-shell Coulomb islands
title_full_unstemmed Supercurrent transport through 1e -periodic full-shell Coulomb islands
title_sort Supercurrent transport through 1e -periodic full-shell Coulomb islands
dc.creator.none.fl_str_mv Razmadze, D.
Seoane Souto, Rubén
O'Farrell, E.C.T.
Krogstrup, P.
Leijnse, M.
Marcus, C.M.
Vaitiekėnas, S.
author Razmadze, D.
author_facet Razmadze, D.
Seoane Souto, Rubén
O'Farrell, E.C.T.
Krogstrup, P.
Leijnse, M.
Marcus, C.M.
Vaitiekėnas, S.
author_role author
author2 Seoane Souto, Rubén
O'Farrell, E.C.T.
Krogstrup, P.
Leijnse, M.
Marcus, C.M.
Vaitiekėnas, S.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Bound states
Coulomb blockade
Density of states
Josephson effect
Superconductivity
Josephson junctions
Nanowires
Quantum dots
topic Bound states
Coulomb blockade
Density of states
Josephson effect
Superconductivity
Josephson junctions
Nanowires
Quantum dots
description We experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shells. Applying flux along the wire yields a series of destructive Little-Parks lobes with reentrant supercurrent. We find Coulomb blockade with 2e peak spacing in the zeroth lobe and 1e average spacing, with regions of significant even-odd modulation, in the first lobe. Evolution of Coulomb-peak amplitude through the first lobe is consistent with a theoretical model of supercurrent carried predominantly by zero-energy states in the leads and the island. © 2024 American Physical Society.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
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/10261/393468
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184146518&doi=10.1103%2fPhysRevB.109.L041302&partnerID=40&md5=931d97d281ccc3133fb122c9c308fef2
url http://hdl.handle.net/10261/393468
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184146518&doi=10.1103%2fPhysRevB.109.L041302&partnerID=40&md5=931d97d281ccc3133fb122c9c308fef2
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Physical Review B
https://doi.org/10.1103/PhysRevB.109.L041302
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
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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