Physics – Condensed Matter – Superconductivity
Scientific paper
2006-08-23
Phys. Rev. Lett. 98, 146801 (2007)
Physics
Condensed Matter
Superconductivity
4 pages, 6 figures
Scientific paper
10.1103/PhysRevLett.98.146801
We study the superconducting phases of the two-dimensional honeycomb lattice of graphene. We find two spin singlet pairing states, s-wave and an exotic $p+ip$ that is possible because of the special structure of the honeycomb lattice. At half filling, the $p+ip$ phase is gapless and superconductivity is a hidden order. We discuss the possibility of a superconducting state in metal coated graphene.
Castro Neto Antonio H.
Uchoa Bruno
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