A. Levy, J.P. Falck, 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.
A. Levy, J.P. Falck, et al.
Physical Review B
W.J. Gallagher, S.S.P. Parkin, et al.
Journal of Applied Physics
S.M. Faris, S.I. Raider, et al.
IEEE Transactions on Magnetics
T. Worthington, W.J. Gallagher, et al.
Physical Review Letters