Non-thermal origin of nonlinear transport across magnetically induced superconductor-metal-insulator transition

Abstract

We have studied the effect of perpendicular magnetic fields and temperatures on the nonlinear electronic transport in amorphous Ta superconducting thin films. The films exhibit a magnetic field induced metallic behavior intervening the superconductor-insulator transition in the zero temperature limit. We show that the nonlinear transport in the superconducting and metallic phase is of non-thermal origin and accompanies an extraordinarily long voltage response time.

arXiv comment5 pages, 4 figures

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• Bose Metal as a Disruption of the Berezinskii-Kosterlitz-Thouless Transition in 2D Superconductors
• Evidence for Superconducting Phase Coherence in the Metallic/Insulating Regime of the LaAlO3-SrTiO3 Interface Electron System
• Evidence of spatial inhomogeneity near the onset of magnetically induced insulating state in superconducting thin films
• Investigating superconductor-insulator transition in thin films using drag resistance:Theoretical analysis of a proposed experiment
• Signature of Cooper Pairs in the Non-Superconducting Phases of Amorphous Superconducting Tantalum Films
• Effect of external electromagnetic radiation on the anomalous metallic behaviors in Ta thin films
• Vanishing Hall Conductance in the Phase Glass Bose Metal at Zero Temperature
• Theoretical Analysis of Drag Resistance in Amorphous Thin Films Exhibiting Superconductor-Insulator-Transition