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VOLUME 94 | ISSUE 1 | PAGE 81
Surface superconductivity in multilayered rhombohedral graphene: supercurrent
N. B. Kopnin
Low Temperature laboratory, Aalto university, P.O. Box 15100, 00076 Aalto, Finland
L.D. Landau Institute for Theoretical Physics RAS, 117940 Moscow, Russia

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.


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