Long-Range Propagation and Interference of $d$-wave Superconducting Pairs in Graphene

Abstract

Recent experiments have shown that proximity with high-temperature superconductors induces unconventional superconducting correlations in graphene. Here we demonstrate that those correlations propagate hundreds of nanometer, allowing for the unique observation of $d$-wave Andreev pair interferences in YBa${}_2$Cu${}_3$O${}_7$-graphene devices that behave as a Fabry-Pérot cavity. The interferences show as a series of pronounced conductance oscillations analogous to those originally predicted by de Gennes--Saint-James for conventional metal-superconductor junctions. The present work is pivotal to the study of exotic directional effects expected for nodal superconductivity in Dirac materials.

arXiv comment4 pages with 4 figure

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Cited by in corpus (5)

• Chiral Majorana Modes via Proximity to a Twisted Cuprate Bilayer
• Andreev Reflection and Klein Tunneling in High-Temperature Superconductor/Graphene Junctions
• Superconducting proximity effect in $d$-wave cuprate/ graphene heterostructures
• Effects of Li Doping on Superconducting Properties of Citrate Gel Prepared Y1-xLixBa2Cu3O7-d Compound
• Coupling of Klein-Andreev Resonant States in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+x}$-graphene-Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+x}$ Devices