Intra-Valley Spin-Triplet p + ip Superconducting Pairing in Lightly Doped Graphene

Author: Jian-Hui Zhou   Tao Qin   Jun-Ren Shi  

Publisher: IOP Publishing

ISSN: 0256-307X

Source: Chinese Physics Letters, Vol.30, Iss.1, 2013-01, pp. : 17401-17404

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Abstract

We analyze various possible superconducting pairing states and their relative stabilities in lightly doped graphene. It is shown that, when inter-sublattice electron-electron attractive interaction dominates and the Fermi level is close to the Dirac points, the system will favor intra-valley spin-triplet p + ip pairing state. Based on the novel pairing state, we further propose a scheme for doing topological quantum computation in graphene by engineering local strain fields and external magnetic fields.