Uchoa Bruno, Castro Neto A H
Physics Department, Boston University, 590 Commonwealth Ave., Boston, Massachusetts 02215, USA.
Phys Rev Lett. 2007 Apr 6;98(14):146801. doi: 10.1103/PhysRevLett.98.146801. Epub 2007 Apr 3.
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.
我们研究了石墨烯二维蜂窝晶格的超导相。我们发现了两种自旋单重态配对状态；s波和一种奇特的p + ip态，由于蜂窝晶格的特殊结构，这种态是可能存在的。在半填充时，p + ip相是无隙的，超导是一种隐藏序。我们讨论了金属包覆石墨烯中超导态的可能性。
