Superconductivity in 4 Angstrom Single-Walled Carbon Nanotubes

@article{Tang2001SuperconductivityI4,
  title={Superconductivity in 4 Angstrom Single-Walled Carbon Nanotubes},
  author={Z. K. Tang and Lingyun Zhang and Na Wang and X. X. Zhang and Gehui Wen and G. D. Li and J. N. Wang and C. T. Chan and Ping Sheng},
  journal={Science},
  year={2001},
  volume={292},
  pages={2462 - 2465}
}
Investigation of the magnetic and transport properties of single-walled small-diameter carbon nanotubes embedded in a zeolite matrix revealed that at temperatures below 20 kelvin, 4 angstrom tubes exhibit superconducting behavior manifest as an anisotropic Meissner effect, with a superconducting gap and fluctuation supercurrent. The measured superconducting characteristics display smooth temperature variations owing to one-dimensional fluctuations, with a mean-field superconducting transition… 
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