Bruno Uchoa, Yafis Barlas
We describe the formation of superconducting states in graphene in the presence of pseudo-Landau levels induced by strain, when time reversal symmetry is preserved. Due to the incompressibilities associated with completely filled pseudo-Landau levels, superconductivity in strained graphene is quantum critical at integer filling factors, whereas at partial fillings superconductivity survives at weak coupling. In this limit, the critical temperature scales \emph{linearly} with the coupling strength and can be orders of magnitude larger than in conventional weak coupling superconductors. We argue that superconductivity can be induced by electron-phonon coupling and that the transition temperature can be controlled with the amount of strain and with the filling fraction of the Landau levels.
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http://arxiv.org/abs/1212.0016
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