| Zugriffsnummer | 12466 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Josephson arrays for dc and ac metrology |
| Autor(in); Institution |
Niemeyer, Jürgen; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr | Applied Superconductivity 1999 : proceedings of EUCAS 1999, the fourth European conference on applied superconductivity, held in Sitges, Spain, 14-17 September 1999. Vol. 2:(2000), 707 - 712 |
| Schriftenreihe | Institute of Physics Conference Series: 167 |
| Herausgeber(in) |
Obradors, Xavier
|
| ISBN | 0-7503-0746-3 |
| Verlag | Bristol: Institute of Physics Publishing |
| Konferenzangaben | European Conference on Applied Superconductivity 1999, Sitges, 14-17, September, 1999, Spain |
| Zusammenfassung | Large series arrays of underdamped SIS tunnel junctions are the basic element of the primary DC voltage standards at present used. The development of versatile quantum voltmeters for DC and AC metrology requires the preparation of large and perfect series arrays of overdamped Josephson junctions. Overdamped junctions can be realised by externally shunted SIS junctions or by internally shunted SNS or SINIS junctions. Arrays of up to 8000 SINIS junctions or 30000 SNS junctions were successfully operated at the 1 V DC level. In addition to being used in large arrays for voltage metrology and oscillators, the described junction types may become very useful for the preparation of highly integrated single-flux quantum digital devices. |
