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 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 language | English |
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Pages (from-to) | 333-339 |
Number of pages | 7 |
Journal | Superlattices and Microstructures |
Volume | 46 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2009 Jul 1 |
Externally published | Yes |
Keywords
- Carbon nanotube
- Carrier doping
- Meissner effect
- Pressure dependence
- Rope
- Superconductivity
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Electrical and Electronic Engineering