B. Oh, R.H. Koch, et al.
Physical Review B
We have fabricated submicron injection-controlled NbN links with gain and measured their injection-triggered superconducting-to-normal transition to occur in 0.5-2.6 ns at 4 K, governed by condensate dynamics. The transient pulse shape displays a rising-edge kinetic-inductance spike and a strong dependence on the amplitude of the injected quasiparticle current similar to microbridges driven by supercritical currents. A modified dynamic effective-temperature model is used to interpret the transient time and the pulse shape.
B. Oh, R.H. Koch, et al.
Physical Review B
T.R. Dinger, T. Worthington, et al.
Physical Review Letters
R.A. Pollak, H.J. Stolz, et al.
Oxidation of Metals
B. Oh, R.H. Koch, et al.
Applied Physics Letters