Superconductivity in 4 Angstrom Single-Walled Carbon Nanotubes

2001/06/29 by Zi Kang Tang, Lingyun Zhang, Ning Wang +6 · 822 citations
Chemistry · Materials Science · #Angstrom #Anisotropy #Carbon Nanotubes in Composites #Carbon nanotube #Chemistry #Composite material #Condensed matter physics #Crystallography #Fullerene Chemistry and Applications #Graphene research and applications #Josephson effect #Magnetic field #Materials science #Meissner effect #Nanotechnology #Optics #Physics #Superconductivity #Supercurrent #Transition temperature #Yield (engineering)

paper · doi:10.1126/science.1060470

published in Science 292(5526), 2462-2465 (American Association for the Advancement of Science)

openalex publication_date 2001/06/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23

Abstract

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 temperature of 15 kelvin. Statistical mechanic calculations based on the Ginzburg-Landau free-energy functional yield predictions that are in excellent agreement with the experiments.

Citations

• Equation of State Calculations by Fast Computing Machines
• Theory of Superconductivity

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