Physics – Condensed Matter – Superconductivity
Scientific paper
2005-12-23
Phys. Rev. B 74, 014508 (2006)
Physics
Condensed Matter
Superconductivity
8 pages incl. 7 figures
Scientific paper
10.1103/PhysRevB.74.014508
Within the framework of the microscopic model of tunneling, we modelled the behavior of the Josephson junction shunted by the Superconductor-Insulator-Normal metal (SIN) tunnel junction. We found that the electromagnetic impedance of the SIN junction yields both the frequency-dependent damping and dynamic reactance which leads to an increase in the effective capacitance of the circuit. We calculated the dc I-V curves and transient characteristics of these circuits and explained their quantitative differences to the curves obtained within the resistively shunted junction model. The correct operation of the basic single-flux-quanta circuits with such SIN-shunted junctions, i.e. the Josephson transmission line and the toggle flip-flop, have also been modelled.
Buchholz F.-I.
Khabipov M. I.
Niemeyer Jens
Tolkacheva E. M.
Zorin Alexander B.
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