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Abstract: We show that interface bound states are formed at isolatedgraphene-superconductor junctions. These states arise due to the interplay ofvirtual Andreev and normal reflections taking place at these interfaces. Simpleanalytical expressions for their dispersion are obtained considering interfacesformed along armchair or zig-zag edges. It is shown that the states aresensitive to a supercurrent flowing on the superconducting electrode. Thestates provide long range superconducting correlations on the graphene layerwhich may be exploited for the detection of crossed Andreev processes.



Autor: P. Burset, W. Herrera, A. Levy Yeyati

Fuente: https://arxiv.org/



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