d+id'-wave Superconducting States in Graphene

We show that effective superconducting orders generally emerge at low energy in the superconducting state of graphene with conventionally defined pairing symmetry . We study such a particular interesting example, the \(d_{x^2-y^2}+id'_{xy}\) spin singlet pairing superconducting state in graphen...

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Bibliographic Details
Published inarXiv.org
Main Authors Jiang, Yongjin, Dao-Xin Yao, Carlson, E W, Han-Dong, Chen, Hu, JiangPing
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 22.10.2007
Subjects
Graphene
Physics - Mesoscale and Nanoscale Physics
Physics - Superconductivity
Proximity effect (electricity)
Resistance
Superconductivity
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Summary:We show that effective superconducting orders generally emerge at low energy in the superconducting state of graphene with conventionally defined pairing symmetry . We study such a particular interesting example, the \(d_{x^2-y^2}+id'_{xy}\) spin singlet pairing superconducting state in graphene, which can be generated by electronic correlation as well as induced through a proximity effect with a d-wave superconductor. We find that effectively the 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 novel behavior of the Andreev conductance spectra.
ISSN:2331-8422
DOI:10.48550/arxiv.0710.3962