| Zugriffsnummer | 35233 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Spatially resolved detection of mutually locked Josephson junctions in arrays |
| Autor(in); Institution |
Keck, M.; Physikalisches Institut, Lehrstuhl Experimentalphysik II, Universität Tübingen, Tübingen, GERMANY
Doderer, T.; Physikalisches Institut, Lehrstuhl Experimentalphysik II, Universität Tübingen, Tübingen, GERMANY
Huebener, R. P.; Physikalisches Institut, Lehrstuhl Experimentalphysik II, Universität Tübingen, Tübingen, GERMANY
Träuble, Thomas; 2.4, Quantenelektronik, PTB-Braunschweig
Dolata, Ralf; 2.401, Einzelelektronentunneln, PTB-Braunschweig
Weimann, Thomas; 2.42, Metallische Strukturen, PTB-Braunschweig
Niemeyer, Jürgen; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr | Applied Physics Letters: 71 (1997), 2, 270 - 272 |
| ISSN | 0003-6951 |
| DOI | |
| Verlag | Melville, NY: AIP |
| Zusammenfassung | Mutual locking due to the internal coupling in two-dimensional arrays of Josephson junctions was investigated. The appearance of Shapiro steps in the current versus voltage curve of a coupled on-chip detector junction is used to indicate coherent oscillations in the array. A highly coherent state is observed for some range of the array bias current. By scanning the array with a low-power electron beam, mutually locked junctions remain locked while the unlocked junctions generate a beam-induced additional voltage drop at the array. This imaging technique allows the detection of the nonlocked or weakly locked Josephson junctions in a (partially) locked array state. |
