Title :
Multi-fluxon effects in long Josephson junctions
Author :
Ustinov, A.V. ; Doderer, T. ; Huebener, R.P. ; Mygind, J. ; Oboznov, V.A. ; Pedersen, Niels Falsig
Author_Institution :
Inst. of Solid State Phys., Acad. of Sci., Moscow, Russia
fDate :
3/1/1993 12:00:00 AM
Abstract :
Experiments with fluxons moving in long Josephson junctions of different geometries are reviewed. A controllable way of introducing fluxons one by one into annular Josephson junctions has been realized. This allows a comparison with existing fluxon chain perturbation theory. Several new millimeter-wave stimulated regimes found in linear junctions are discussed. Large asymmetric zero-crossing steps of constant voltage have been observed in the I-V curves. These steps may have a potential application in Josephson voltage standards. Large narrowband radiation emitted from the flux-flow oscillator in the 62-77-GHz frequency range has been detected.<>
Keywords :
Josephson effect; flux flow; microwave oscillators; superconducting junction devices; superconducting microwave devices; 62 to 77 GHz; I-V curves; Josephson voltage standards; annular junctions; asymmetric zero-crossing steps; flux-flow oscillator; fluxon chain perturbation theory; long Josephson junctions; millimeter-wave stimulated regimes; multi-fluxon effects; narrowband radiation; Frequency; Geometry; Josephson junctions; Laboratories; Magnetic flux; Narrowband; Oscillators; Physics; Solid state circuits; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
