Pressure dependence of Meissner effect in films of ropes of boron-doped carbon nanotubes

M. Matsudaira, J. Haruyama, T. Shimizu, J. Nakamura, T. Eguchi, T. Nishio, Y. Hasegawa, H. Sano, Y. Iye, J. Reppert, A. M. Rao

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Superconductivity in carbon nanotubes (CNTs) is attracting considerable attention. Recently, we have reported successful boron doping into single-walled CNTs (SWNTs) and also revealed its correlation with superconductivity. In the present study, we report results of high-pressure magnetization measurements in films consisting of ropes of boron-doped SWNTs. It reveals that Tc and magnitude for Meissner effect are mostly independent of applied pressure, while the magnitude of graphite diamagnetism drastically increases as pressure increases. We also report the observation of resistance drop and correlation of boron doping with multi-walled CNTs, in which we reported superconductivity previously.

Original languageEnglish
Pages (from-to)333-339
Number of pages7
JournalSuperlattices and Microstructures
Issue number1-2
Publication statusPublished - 2009 Jul 1
Externally publishedYes


  • Carbon nanotube
  • Carrier doping
  • Meissner effect
  • Pressure dependence
  • Rope
  • Superconductivity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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