2013/08/12 by Si Chen, Si, Chen, Zheng Liu +5
Engineering · Materials Science · #Advancements in Battery Materials #FOS: Physical sciences #Graphene research and applications #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Molecular Junctions and Nanostructures #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.1308.2566
openalex publication_date 2013/08/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Graphene has exhibited a wealth of fascinating properties, but is also known not to be a superconductor. Remarkably, we show that graphene can be made a conventional Bardeen-Cooper-Schrieffer superconductor by the combined effect of charge doping and tensile strain. While the effect of doping is obvious to enlarge Fermi surface, the effect of strain is profound to greatly increase the electron-phonon coupling. At the experimental accessible doping (4E+14cm-2) and strain (~16%) levels, the superconducting critical temperature Tc reaches as high as ~30 K, the highest for a single-element material above the liquid hydrogen temperature. This significantly makes graphene a commercially viable superconductor.