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VOLUME 94 (2011) | ISSUE 1 | PAGE 81
Surface superconductivity in multilayered rhombohedral graphene: supercurrent
Abstract
The supercurrent for the surface superconductivity of a flat-band multilayered rhombohedral graphene is calculated. Despite the absence of dispersion of the excitation spectrum, the supercurrent is finite. The critical current is proportional to the zero-temperature superconducting gap, i.e., to the superconducting critical temperature and to the size of the flat band in the momentum space.