title: Superconductivity in 4 angstrom single-walled carbon nanotubes.
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.
authors: Department of Physics and Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors: Z K
authors: ZK
authors: Tang
authors: L
authors: L
authors: Zhang
authors: N
authors: N
authors: Wang
authors: X X
authors: XX
authors: Zhang
authors: G H
authors: GH
authors: Wen
authors: G D
authors: GD
authors: Li
authors: J N
authors: JN
authors: Wang
authors: C T
authors: CT
authors: Chan
authors: P
authors: P
authors: Sheng