Publikation:

High-Performance Gate-Controlled Superconducting Switches : Large Output Voltage and Reproducibility

Lade...
Vorschaubild

Dateien

Ruf_2-g4utr8ke68ap9.pdf
Ruf_2-g4utr8ke68ap9.pdfGröße: 4.58 MBDownloads: 19

Datum

2024

Herausgeber:innen

Kontakt

ISSN der Zeitschrift

Electronic ISSN

ISBN

Bibliografische Daten

Verlag

Schriftenreihe

Auflagebezeichnung

ArXiv-ID

Internationale Patentnummer

Link zur Lizenz

Angaben zur Forschungsförderung

European Union (EU): 964398

Projekt

Open Access-Veröffentlichung
Open Access Hybrid
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

ACS Nano. ACS Publications. 2024, 18(31), S. 20600-20610. ISSN 1936-0851. eISSN 1936-086X. Verfügbar unter: doi: 10.1021/acsnano.4c05910

Zusammenfassung

Logic circuits consist of devices that can be controlled between two distinct states. The recent demonstration that a superconducting current flowing in a constriction can be controlled via a gate voltage (VG)─gate-controlled supercurrent (GCS)─can lead to superconducting logic with better performance than existing logics. However, before such logic is developed, high reproducibility in the functioning of GCS devices and optimization of their performance must be achieved. Here, we report an investigation of gated Nb devices showing GCS with very high reproducibility. Based on the investigation of a statistically significant number of devices, we demonstrate that the GCS is independent of the constriction width, in contrast with previous reports, and confirm a strong correlation between the GCS and the leakage current (Ileak) induced by VG. We also achieve a voltage output in our devices larger than the typical values reported to date by at least 1 order of magnitude, which is relevant for the future interconnection of devices, and show that Ileak can be used as a tool to modulate the operational VG of devices on a SiO2 substrates. These results altogether represent an important step forward toward the optimization of reproducibility and performance of GCS devices, and the future development of a GCS-based logic.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690RUF, Leon, Elke SCHEER, Angelo DI BERNARDO, 2024. High-Performance Gate-Controlled Superconducting Switches : Large Output Voltage and Reproducibility. In: ACS Nano. ACS Publications. 2024, 18(31), S. 20600-20610. ISSN 1936-0851. eISSN 1936-086X. Verfügbar unter: doi: 10.1021/acsnano.4c05910
BibTex
@article{Ruf2024-08-06HighP-70727,
  year={2024},
  doi={10.1021/acsnano.4c05910},
  title={High-Performance Gate-Controlled Superconducting Switches : Large Output Voltage and Reproducibility},
  number={31},
  volume={18},
  issn={1936-0851},
  journal={ACS Nano},
  pages={20600--20610},
  author={Ruf, Leon and Scheer, Elke and Di Bernardo, Angelo}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/70727">
    <dc:creator>Ruf, Leon</dc:creator>
    <dc:language>eng</dc:language>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/70727/1/Ruf_2-g4utr8ke68ap9.pdf"/>
    <dcterms:issued>2024-08-06</dcterms:issued>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2024-09-04T11:10:11Z</dcterms:available>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/70727/1/Ruf_2-g4utr8ke68ap9.pdf"/>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2024-09-04T11:10:11Z</dc:date>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:abstract>Logic circuits consist of devices that can be controlled between two distinct states. The recent demonstration that a superconducting current flowing in a constriction can be controlled via a gate voltage (V&lt;sub&gt;G&lt;/sub&gt;)─gate-controlled supercurrent (GCS)─can lead to superconducting logic with better performance than existing logics. However, before such logic is developed, high reproducibility in the functioning of GCS devices and optimization of their performance must be achieved. Here, we report an investigation of gated Nb devices showing GCS with very high reproducibility. Based on the investigation of a statistically significant number of devices, we demonstrate that the GCS is independent of the constriction width, in contrast with previous reports, and confirm a strong correlation between the GCS and the leakage current (I&lt;sub&gt;leak&lt;/sub&gt;) induced by V&lt;sub&gt;G&lt;/sub&gt;. We also achieve a voltage output in our devices larger than the typical values reported to date by at least 1 order of magnitude, which is relevant for the future interconnection of devices, and show that I&lt;sub&gt;leak&lt;/sub&gt; can be used as a tool to modulate the operational VG of devices on a SiO&lt;sub&gt;2&lt;/sub&gt; substrates. These results altogether represent an important step forward toward the optimization of reproducibility and performance of GCS devices, and the future development of a GCS-based logic.</dcterms:abstract>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:title>High-Performance Gate-Controlled Superconducting Switches : Large Output Voltage and Reproducibility</dcterms:title>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Ruf, Leon</dc:contributor>
    <dc:contributor>Scheer, Elke</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/70727"/>
    <dc:creator>Scheer, Elke</dc:creator>
    <dc:contributor>Di Bernardo, Angelo</dc:contributor>
    <dc:creator>Di Bernardo, Angelo</dc:creator>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
  </rdf:Description>
</rdf:RDF>

Interner Vermerk

xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter

Kontakt
URL der Originalveröffentl.

Prüfdatum der URL

Prüfungsdatum der Dissertation

Finanzierungsart

Kommentar zur Publikation

Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Ja
Diese Publikation teilen