Instabilities and resistance fluctuations in thin accelerated superconducting rings

Physics – Condensed Matter – Superconductivity

Scientific paper

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Scientific paper

10.1103/PhysRevE.66.026115

The non-equilibrium properties of a driven quasi-one dimensional superconducting ring subjected to a constant electromotive force ({\it emf}) is studied. The {\it emf} accelerates the superconducting electrons until the critical current is reached and a dissipative phase slip occurs that lowers the current. The phase slip phenomena is examined as a function of the strength of the {\it emf}, thermal noise, and normal state resistivity. Numerical and analytic methods are used to make detailed predictions for the magnitude of phase slips and subsequent dissipation.

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