High-Tc superconductivity in entirely end-bonded multi-walled carbon nanotubes

Details High-Tc superconductivity in entirely end-bonded multi-walled carbon nanotubes High-Tc superconductivity in entirely end-bonded multi-walled carbon nanotubes

2005-09-18

arxiv.org/abs/cond-mat/0509466v3

Physics

Condensed Matter

Superconductivity

5 pages

Scientific paper

10.1103/PhysRevLett.96.057001

We report that entirely end-bonded multi-walled carbon nanotubes (MWNTs) can show superconductivity with the transition temperature Tc as high as 12K that is approximately 40-times larger than those reported in ropes of single-walled nanotubes. We find that emergence of this superconductivity is very sensitive to junction structures of Au electrode/MWNTs. This reveals that only MWNTs with optimal numbers of electrically activated shells, which are realized by the end-bonding, can allow the superconductivity due to inter shell effects.

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