Andreev conductance in the d+i d′ -wave superconducting states of graphene

Yongjin Jiang, Dao Xin Yao, Erica W. Carlson, Han Dong Chen, Jiang Ping Hu

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


We show that effective superconducting orders generally emerge at low energy in the superconducting state of graphene with conventionally defined pairing symmetry. We study a particular interesting example, the d x2 - y2 +i d xy ′ spin singlet pairing state in graphene which can be generated by electronic correlation. We find that effectively the d+i d′ -wave state is a state with mixed s -wave and exotic p+ip -wave pairing orders at low energy. This remarkable property leads to distinctive superconducting gap functions and behavior of the Andreev conductance spectra through a normal/superconducting graphene structure.

Original languageEnglish (US)
Article number235420
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number23
StatePublished - Jun 13 2008
Externally publishedYes


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