Novel digital impedance bridges for the realization of the farad from graphene quantum standards

Marzano, Martina; Yaowaret, Pimsut; Kruskopf, Mattias; Kraus, Marco; Ortolano, Massimo; Bauer, Stephan; Behr, Ralf; Callegaro, Luca

doi:https://doi.org/10.23919/AT-AP-RASC54737.2022.9814423

Zugriffsnummer	48722
Dokumenttyp	Konferenzartikel
Peer Review	unbekannt
Sprache	Englisch
Titel	Novel digital impedance bridges for the realization of the farad from graphene quantum standards
Autor(in); Institution	Marzano, Martina; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY Yaowaret, Pimsut; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig; National Metrology Institute of Thailand, Pathum Thani, THAILAND Kruskopf, Mattias; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Kraus, Marco; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Ortolano, Massimo; Politecnico di Torino, Torino, ITALY; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY Bauer, Stephan; PSt, Präsidialer Stab, PTB-Braunschweig Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Callegaro, Luca; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY
Quelle/Jahr	2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC):(2022)
ISBN	978-9-4639-6-8058 (ONLINE) ; 978-1-6654-9986-6 (PoD)
DOI	https://doi.org/10.23919/AT-AP-RASC54737.2022.9814423
Verlag	Piscataway, NJ: IEEE
Konferenzangaben	2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC), Gran Canaria, 29, May - 3, June 2022, Spain
Freie Schlagworte	Resistance ; Temperature dependence ; Uncertainty ; Graphene ; Bridge circuits ; Switches ; Hall effect
Zusammenfassung	In the International System of Units, a realization of the impedance units is the quantum Hall effect, a macroscopic quantum phenomenon that produces quantized resistance values. Established experiments employ individual GaAs devices [1], but research is ongoing on novel materials such as graphene, which allows the realization of the units with relaxed experimental conditions. Furthermore, novel digital impedance bridges allow the implementation of simple traceability chains. In the framework of the European EMPIR project 18SIB07 GIQS (Graphene Impedance Quantum Standards), an affordable and easy-to-operate impedance standard combining novel digital impedance bridges and graphene quantum standards have been developed. An onsite comparison of an electronic and a Josephson impedance bridges developed at INRIM (Istituto Nazionale di Ricerca Metrologica, Italy) and PTB (Physikalisch-Technische Bundesanstalt, Germany), respectively, were organized for their mutual validation and to assess their performance in the realization of the farad. Measurements of temperature-controlled impedance standards and of a graphene quantized Hall resistance standard in the AC regime were performed with both INRIM’s and PTB’s bridges. The result of the comparison and the last progresses of the GIQS project are here presented.

Themenbereich der Metrologie	Elektrizität und Magnetismus
Forschungsprojekt	18SIB07: GIQS: Graphene impedance quantum standard
Förderinformationen (1)	Förderername: European Commission (EC) Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2018 SI Broader Scope Titel der Förderung: 18SIB07: GIQS: Graphene impedance quantum standard Förderungsnummer: 18SIB07

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Marzano, M., Yaowaret, P., Kruskopf, M., Kraus, M., Ortolano, M., Bauer, S., Behr, R., & Callegaro, L. (2022). Novel digital impedance bridges for the realization of the farad from graphene quantum standards. 2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC), Gran Canaria, 29, May - 3, June 2022, Spain. https://doi.org/10.23919/AT-AP-RASC54737.2022.9814423

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