Low Energy Properties of the (n,n) Carbon Nanotubes
Yu. A. Krotov, D. -H. Lee, Steven G. Louie
Abstract
According to band theory, an ideal undoped (n,n) carbon nanotube is metallic. We show that the electron-electron interaction causes it to become Mott insulating with a spin gap. More interestingly, upon doping it develops superconducting fluctuations.
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