Energy Gaps in "Metallic" Single-Walled Carbon Nanotubes

@article{Ouyang2001EnergyGI,
  title={Energy Gaps in "Metallic" Single-Walled Carbon Nanotubes},
  author={Minting Ouyang and Jinlin Huang and Chin Li Cheung and Charles M. Lieber},
  journal={Science},
  year={2001},
  volume={292},
  pages={702 - 705}
}
Metallic single-walled carbon nanotubes have been proposed to be good one-dimensional conductors. However, the finite curvature of the graphene sheet that forms the nanotubes and the broken symmetry due to the local environment may modify their electronic properties. We used low-temperature atomically resolved scanning tunneling microscopy to investigate zigzag and armchair nanotubes, both thought to be metallic. “Metallic” zigzag nanotubes were found to have energy gaps with magnitudes that… 

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