Proximity-induced superconductivity in graphene

Abstract

We propose a way of making graphene superconductive by putting on it small superconductive islands which cover a tiny fraction of graphene area. We show that the critical temperature, T_c, can reach several Kelvins at the experimentally accessible range of parameters. At low temperatures, T<<T_c, and zero magnetic field, the density of states is characterized by a small gap E_g<T_c resulting from the collective proximity effect. Transverse magnetic field H_g(T) E_g is expected to destroy the spectral gap driving graphene layer to a kind of a superconductive glass state. Melting of the glass state into a metal occurs at a higher field H_{g2}(T).

4 pages, 3 figures

References in corpus (3)

• Electric Field Effect in Atomically Thin Carbon Films
• Bipolar supercurrent in graphene
• Weak localisation in graphene flakes

Cited by in corpus (17)

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• Tunable Superconducting Phase Transition in Metal-Decorated Graphene Sheets
• Superconducting States in pseudo-Landau Levels of Strained Graphene
• Superconductivity of disordered Dirac fermions
• Tunneling conductance due to discrete spectrum of Andreev states
• How to induce superconductivity in epitaxial graphene $via$ remote proximity effect through an intercalated gold layer
• Inhomogeneous superconductivity in the presence of time-reversal symmetry
• How magnetic field can transform a superconductor into a Bose metal
• Weak links in proximity superconducting two dimensional electron systems
• Strange metal state near quantum superconductor-metal transition in thin films
• A numerical study of planar arrays of correlated spin islands
• Josephson coupling between superconducting islands on single and bilayer graphene
• Gate-tunable crossover between vortex-interaction and pinning dominated regimes in Josephson-coupled Lead-islands on graphene
• Vortex detection and quantum transport in mesoscopic graphene Josephson junction arrays