Current-voltage characteristics of quasi-one-dimensional superconductors: An S-curve in the constant voltage regime
arXiv:cond-mat/0304193 · doi:10.1103/PhysRevLett.91.157001
Abstract
Applying a constant voltage to superconducting nanowires we find that its IV-characteristic exhibits an unusual S-behavior. This behavior is the direct consequence of the dynamics of the superconducting condensate and of the existence of two different critical currents: j_{c2} at which the pure superconducting state becomes unstable and j_{c1}<j_{c2} at which the phase slip state is realized in the system.
4 pages, 5 figures, replaced with minor changes