Graphene holds promises for exploring exotic superconductivity with Dirac-like fermions. Making graphene a superconductor at large scales is however a long-lasting challenge. A possible solution relies on epitaxially-grown graphene, using a superconducting substrate. Such substrates are scarce, and usually destroy the Dirac character of the electronic band structure. Using electron diffraction (reflection high-energy, and low-energy), scanning tunneling microscopy and spectroscopy, atomic force microscopy, angle-resolved photoemission spectroscopy, Raman spectroscopy, and density functional theory calculations, we introduce a strategy to induce superconductivity in epitaxial graphene via a remote proximity effect, from the rhenium substrate through an intercalated gold layer. Weak graphene–Au interaction, contrasting with the strong undesired graphene–Re interaction, is demonstrated by a reduced graphene corrugation, an increased distance between graphene and the underlying meta...

中文翻译：

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如何通过插层金层通过远程邻近效应在外延石墨烯中诱导超导

石墨烯有望探索像狄拉克一样的费米子的超导电性。然而，使石墨烯大规模地成为超导体是一项长期的挑战。一种可能的解决方案是使用超导衬底，依靠外延生长的石墨烯。这样的衬底是稀缺的，并且通常破坏电子带结构的狄拉克特性。利用电子衍射（反射高能和低能），扫描隧道显微镜和光谱，原子力显微镜，角度分辨光发射光谱，拉曼光谱和密度泛函理论计算，我们引入了一种在外延石墨烯中诱导超导性的策略。通过remote邻近效应，从from基底到插入的金层。石墨烯-金相互作用弱，