title: Current-voltage characteristics of quasi-one-dimensional superconductors: an S-shaped curve in the constant voltage regime.
abstract: Applying a constant voltage to superconducting nanowires we find that its I-V 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.
authors: Departement Natuurkunde, Universiteit Antwerpen (UIA), B-2610 Antwerpen, Belgium.
authors: D Y
authors: DY
authors: Vodolazov
authors: F M
authors: FM
authors: Peeters
authors: L
authors: L
authors: Piraux
authors: S
authors: S
authors: Mátéfi-Tempfli
authors: S
authors: S
authors: Michotte