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Superconductivity in Ropes of Single-Walled Carbon Nanotubes

M. Kociak·A. Yu. Kasumov·S. Gueron·B. Reulet·L. Vaccarini·I. I. Khodos·Yu. B. Gorbatov·V. T. Volkov·H. Bouchiat
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Abstract

We report measurements on ropes of Single Walled Carbon Nanotubes (SWNT) in low-resistance contact to non-superconducting (normal) metallic pads, at low voltage and at temperatures down to 70 mK. In one sample, we find a two order of magnitude resistance drop below 0.55 K, which is destroyed by a magnetic field of the order of 1T, or by a d.c. current greater than 2.5 microA. These features strongly suggest the existence of superconductivity in ropes of SWNT.

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M. Kociak, A. Yu. Kasumov, S. Gueron, B. Reulet, L. Vaccarini, I. I. Khodos, Yu. B. Gorbatov, V. T. Volkov, H. Bouchiat. 2001-01-09. Superconductivity in Ropes of Single-Walled Carbon Nanotubes. https://doi.org/10.1103/physrevlett.86.2416

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