Mutual validation of PTB's Josephson and INRIM-POLITO’s electronic impedance bridges for the realization of the farad from graphene quantum standards

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

Zugriffsnummer	48817
Dokumenttyp	Konferenzartikel
Peer Review	unbekannt
Sprache	Englisch
Titel	Mutual validation of PTB's Josephson and INRIM-POLITO’s electronic impedance bridges for the realization of the farad from graphene quantum standards
Autor(in); Institution	Marzano, Martina; INRIM Istituto Nazionale di Ricerca Metrologica, Torino, ITALY Yaowaret, Pimsut; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig; National Institute of Metrology, Pathum Thani, THAILAND Kruskopf, Mattias; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Yefei, Yin; 2.5, Halbleiterphysik und Magnetismus, PTB-Braunschweig Kraus, Marco; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Massimo, Ortolano; INRIM Istituto Nazionale di Ricerca Metrologica, Torino, Italy Politecnico di Torino, ITALY Bauer, Stephan; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig Callegaro, Luca; INRIM Istituto Nazionale di Ricerca Metrologica, Torino, ITALY
Quelle/Jahr	IMEKO TC4 Symposium 2022 - Proceedings:(2022), 238 - 242
URL	https://www.imeko-tc4-2022.org/preliminary-program
Konferenzangaben	25th IMEKO TC-4 International Symposium on Measurement of Electrical Quantities, Brescia, 12-14, September, 2022, Italy
Zusammenfassung	In the International System of Units, the impedance units can be realized from the quantum Hall effect, a macroscopic quantum phenomenon producing quantized resistance values. Established experiments employ individual GaAs devices [1], but novel materials such as graphene can be exploited to realize the units with relaxed experimental conditions. Furthermore, simple traceability chains can be implemented with novel digital impedance bridges. By combining novel digital impedance bridges and graphene quantum standards, an easy-to-operate and affordable impedance standard has been developed in the framework of the European EMPIR project 18SIB07 GIQS (Graphene Impedance Quantum Standards). An onsite comparison of an electronic and a Josephson impedance bridge developed at INRIM (Istituto Nazionale di Ricerca Metrologica, Italy) together with POLITO (Politecnico di Torino, Italy) and at PTB (Physikalisch-Technische Bundesanstalt, Germany), respectively, were organized for their mutual validation in the realization of the farad from graphene quantum standards. The result of the comparison and the last progresses of the GIQS project are here presented.

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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., Yefei, Y., Kraus, M., Massimo, O., Bauer, S., Behr, R., & Callegaro, L. (2022). Mutual validation of PTB's Josephson and INRIM-POLITO’s electronic impedance bridges for the realization of the farad from graphene quantum standards. 25th IMEKO TC-4 International Symposium on Measurement of Electrical Quantities, Brescia, 12-14, September, 2022, Italy.

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