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True Superconductivity in a 2D "Superconducting-Insulating" System

Nadya Mason·Aharon Kapitulnik
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Abstract

We present results on disordered amorphous films which are expected to undergo a field-tuned Superconductor-Insulator Transition. Based on low-field data and I-V characteristics, we find evidence of a low temperature Metal-to-Superconductor transition. This transition is characterized by hysteretic magnetoresistance and discontinuities in the I-V curves. The metallic phase just above the transition is different from the "Fermi Metal" before superconductivity sets in.

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Nadya Mason, Aharon Kapitulnik. 2000-06-08. True Superconductivity in a 2D "Superconducting-Insulating" System. https://doi.org/10.1103/physrevb.64.060504

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