| Zugriffsnummer | 44719 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Series arrays of NbSi barrier junctions with RF power dividers for AC Josephson voltage standards |
| Autor(in); Institution |
Kohlmann, Johannes; 2.4, Quantenelektronik, PTB-Braunschweig
Tian, Hao; 2.4, Quantenelektronik, PTB-Braunschweig
Kieler, Oliver; 2.4, Quantenelektronik, PTB-Braunschweig
Gerdau, Rolf; 2.4, Quantenelektronik, PTB-Braunschweig
Egeling, Bert; 2.4, Quantenelektronik, PTB-Braunschweig
Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
|
| Quelle/Jahr | 2020 Conference on Precision Electromagnetic Measurements (CPEM 2020):(2020), 344 - 345 |
| ISSN | 2160-0171 (ONLINE) ; 0589-1485 (POD) |
| ISBN | 978-1-7281-5898-3 (PDF) ; 978-1-7281-5899-0 (PoD) |
| DOI | |
| Verlag | New York, NY: IEEE |
| Konferenzangaben | Conference on Precision Electromagnetic Measurements (CPEM), Virtual Conference, 24-28, August, 2020, USA |
| Freie Schlagworte | Digital-analog conversion ; Josephson junction arrays ; precision measurements ; superconducting integrated circuits ; superconducting thin films ; voltage measurement |
| Zusammenfassung | Overdamped Josephson junctions for AC voltage standards are realized with NbxSi1-x barrier junctions at PTB. The characteristic parameters of the junctions can be tuned over a wide range by adjusting the Nb content and the thickness of the barrier. For the pulse-driven Josephson Arbitrary Waveform Synthesizer (JAWS), series arrays of up to 15,000 Josephson junctions have been fabricated using junction stacks containing five Josephson junctions. In addition, two types of on-chip power dividers have been investigated at PTB, namely Wilkinson and serial-parallel power dividers, respectively. These developments aim for further increasing the number of Josephson junctions on a single chip and thus for increasing the output voltage. |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |
Zitierung
Kohlmann, J., Tian, H., Kieler, O., Gerdau, R., Egeling, B., & Behr, R. (2020). Series arrays of NbSi barrier junctions with RF power dividers for AC Josephson voltage standards. Conference on Precision Electromagnetic Measurements (CPEM), Virtual Conference, 24-28, August, 2020, USA. https://doi.org/10.1109/cpem49742.2020.9191734