Qualitative modifications and new dynamic phases in the phase diagram of one-dimensional superconducting wires driven with electric currents

Shimshon Kallush; Jorge Berger

doi:10.1103/PhysRevB.89.214509

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Qualitative modifications and new dynamic phases in the phase diagram of one-dimensional superconducting wires driven with electric currents

Shimshon Kallush, Jorge Berger

DOI 10.1103/PhysRevB.89.214509 · Physical Review B

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Abstract

After an initial transient period, the conduction regime in a one-dimensional superconducting wire that carries a fixed current is either normal, periodic, or stationary. The phase diagram for these possibilities was studied in Phys. Rev. Lett. 99, 167003 (2007) for particular values of the length and the material parameters. We have extended this study to arbitrary length and to a range of material parameters that includes realistic values. Variation of the length leads to scaling laws for the phase diagram. Variation of the material parameters leads to new qualitative features and new phases, including a parameter region in which all three regimes are possible.