Superconductivity in ropes of single-walled carbon nanotubes

We report measurements on ropes of single-walled carbon nanotubes (SWNT) in low-resistance contact to nonsuperconducting (normal) metallic pads, at low voltage and at temperatures down to 70 mK. In one sample, we find a 2 orders of magnitude resistance drop below 0.55 K, which is destroyed by a magn...

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Bibliographic Details
Published in:	Physical review letters Vol. 86; no. 11; pp. 2416 - 2419
Main Authors:	Kociak, M, Kasumov, A Y, Guéron, S, Reulet, B, Khodos, I I, Gorbatov, Y B, Volkov, V T, Vaccarini, L, Bouchiat, H
Format:	Journal Article
Language:	English
Published:	United States 12-03-2001
Online Access:	Get full text
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Summary:	We report measurements on ropes of single-walled carbon nanotubes (SWNT) in low-resistance contact to nonsuperconducting (normal) metallic pads, at low voltage and at temperatures down to 70 mK. In one sample, we find a 2 orders of magnitude resistance drop below 0.55 K, which is destroyed by a magnetic field of the order of 1 T, or by a dc current greater than 2.5 microA. These features strongly suggest the existence of superconductivity in ropes of SWNT.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.86.2416