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Nonlinear I-V, High Flux-Flow Velocity Instability and Evidence for Quantum Fluctuations in BSCCO Superconducting Films

J. Chiaverini·J. N. Eckstein·I. Bozovic·S. Doniach·A. Kapitulnik
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Abstract

The large flux-flow velocity behavior of the high temperature superconductor BSCCO in the mixed state is studied by measurement of the current-voltage characteristic as a function of temperature and magnetic field direction. We find strong evidence for vortex-antivortex pairs that are excited by quantum fluctuations and contribute to the dissipation when dissociated by a large current.

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J. Chiaverini, J. N. Eckstein, I. Bozovic, S. Doniach, A. Kapitulnik. 2000-07-28. Nonlinear I-V, High Flux-Flow Velocity Instability and Evidence for Quantum Fluctuations in BSCCO Superconducting Films. https://arxiv.org/abs/cond-mat/0007479

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