Meissner effect in films of ropes of boron-doped single-walled carbon nanotubes; Correlation with applied pressure and boron-doped multi-walled nanotubes

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

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Abstract

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 pressure-applied magnetization measurements in films consisting of ropes of boron-doped SWNTs. It reveals that Tc and magnitude for Meissner effect is mostly independent of applied pressure, while magnitude of graphite diamagnetism drastically increases as pressure increases. We also report result of resistance measurements in the samples and also correlation of boron doped SWNTs with multi-walled CNTs, in which we reported superconductivity previously.

Original languageEnglish
Article number012070
JournalJournal of Physics: Conference Series
Volume153
DOIs
Publication statusPublished - 2009 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Matsudaira, M., Nakamura, J., Shimizu, T., Haruyama, J., Reppert, J., Rao, A. M., Eguchi, T., Nishio, T., Hasegawa, Y., Sano, H., & Iye, Y. (2009). Meissner effect in films of ropes of boron-doped single-walled carbon nanotubes; Correlation with applied pressure and boron-doped multi-walled nanotubes. Journal of Physics: Conference Series, 153, [012070]. https://doi.org/10.1088/1742-6596/153/1/012070