rf-driven josephson junctions: tails on the shapiro steps of the I−V curves
C. C. Chi, C. Vanneste, W. J. Gallagher, A. W. Kleinsasser, S. I. Raider, R. L. Sandstrom
DOI 10.1103/PhysRevB.38.9227 · Physical Review B
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Abstract
rf-driven Josephson junctions have been experimentally studied in a wide parameter range corresponding to the low-frequency boundary of the chaotic regime, where the I−V curves display characteristic large negative-going tails on top of the Shapiro steps. The tail, in units of the Shapiro step spacing, has been found to increase with decreasing damping of the junction, in agreement with theoretical predictions using the resistively-shunted-junction model.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb/NbOx/Pb-Au-In Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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