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Anomalous Parallel Field Negative Magnetoresistance in Ultrathin Films Near the Superconductor-Insulator Transition

Kevin A. Parendo·L. M. Hernandez·A. Bhattacharya·A. M. Goldman
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Abstract

A parallel field negative magnetoresistance has been found in quench-condensed ultrathin films of amorphous bismuth in the immediate vicinity of the thickness-tuned superconductor-insulator transition. The effect appears to be a signature of quantum fluctuations of the order parameter associated with the quantum critical point.

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Kevin A. Parendo, L. M. Hernandez, A. Bhattacharya, A. M. Goldman. 2004-08-14. Anomalous Parallel Field Negative Magnetoresistance in Ultrathin Films Near the Superconductor-Insulator Transition. https://doi.org/10.1103/physrevb.70.212510

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