Polariton-induced superconductivity in two-dimensional metals

2025/11/01 by Riccardo Riolo, Riolo, Riccardo, Frank H. L. Koppens +9 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Graphene research and applications #Plasmonic and Surface Plasmon Research #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #Topological Materials and Phenomena

paper · pdf · doi:10.48550/arxiv.2511.00608

openalex publication_date 2025/11/01 · openalex created_date 2025/11/05 · openalex updated_date 2026/07/28

Abstract

The electronic properties of two-dimensional (2D) metals are altered by changes in their three-dimensional dielectric environment. In this Letter we propose that superconductivity can be induced in a 2D metal by resonant coupling between its plasmonic collective modes and optical phonons in a nearby polar dielectric. Specifically, we predict that relatively high-temperature superconductivity can be induced in bilayer graphene twisted to an angle somewhat larger than the magic value by surrounding it with a THz polar dielectric. Our conclusions are based on numerical solutions of Eliashberg equations for massless Dirac fermions with tunable Fermi velocities and Fermi energies, and can be understood qualitatively in terms of a generalized McMillan formula.

Citations

• Optical control of orbital magnetism in magic angle twisted bilayer graphene
• Cavity engineering of solid-state materials without external driving
• Quantum Electrodynamics of graphene Landau levels in a deep-subwavelength hyperbolic phonon polariton cavity
• Coulomb screening of superconductivity in magic-angle twisted bilayer graphene
• Double-edged Role of Interactions in Superconducting Twisted Bilayer Graphene
• Enhanced fractional quantum Hall gaps in a two-dimensional electron gas coupled to a hovering split-ring resonator
• Tuning Fermi Liquids with polaritonic Cavities
• Testing the Renormalization of the von Klitzing Constant by Cavity Vacuum Fields
• Cavity quantum-electrodynamical polaritonically enhanced electron-phonon coupling and its influence on superconductivity
• The electronic properties of graphene
• Calculation of the Superconducting State Parameters with Retarded Electron-Phonon Interaction

Cited by

• Effects on a metal that is proximately coupled to hyperbolic photon modes

Related

• Resonantly enhanced polariton-mediated superconductivity in a doped transition metal dichalcogenide monolayer
• Tuning Fermi Liquids with polaritonic Cavities
• Enhancing superconductivity with resonant anti-shielding and topological plasmon-polarons
• Microscopic theory for electron-phonon coupling in twisted bilayer graphene
• Tunable coupling of terahertz Dirac plasmons and phonons in transition metal dicalchogenide-based van der Waals heterostructures