Superconductivity in Entirely End-Bonded Multiwalled Carbon Nanotubes

I. Takesue, J. Haruyama, N. Kobayashi, S. Chiashi, S. Maruyama, T. Sugai, and H. Shinohara
Phys. Rev. Lett. 96, 057001 – Published 10 February 2006

Abstract

We report that entirely end-bonded multiwalled carbon nanotubes (MWNTs) can exhibit superconductivity with a transition temperature (Tc) as high as 12 K, which is approximately 30 times greater than Tc reported for ropes of single-walled nanotubes. We find that the emergence of this superconductivity is highly sensitive to the junction structures of the Au electrode/MWNTs. This reveals that only MWNTs with optimal numbers of electrically activated shells, which are realized by end bonding, can allow superconductivity due to intershell effects.

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  • Received 12 February 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.057001

©2006 American Physical Society

Authors & Affiliations

I. Takesue1,4, J. Haruyama1,4,*, N. Kobayashi1, S. Chiashi2, S. Maruyama2, T. Sugai3,4, and H. Shinohara3,4

  • 1Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 229-8558, Japan
  • 2Tokyo University, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  • 3Nagoya University, Furo-cho, Chigusa, Nagoya 464-8602, Japan
  • 4JST-CREST, 4-1-8 Hon-machi, Kawaguchi, Saitama 332-0012, Japan

  • *Corresponding author. Electronic address: J-haru@ee.aoyama.ac.jp

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Issue

Vol. 96, Iss. 5 — 10 February 2006

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