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

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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.
4 pages, 4 figures

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Superconductivity, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/16632

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0007479
 http://arxiv.org/abs/cond-mat/0007479

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arXiv