Theory of BCS-like bogolon-mediated superconductivity in transition metal dichalcogenides

Abstract

We report on a novel mechanism of BCS-like superconductivity, mediated by a pair of Bogoliubov quasiparticles (bogolons). It takes place in hybrid systems consisting of a two-dimensional electron gas in a transition metal dichalcogenide monolayer in the vicinity of a Bose-Einstein condensate. Taking a system of two-dimensional indirect excitons as a testing ground we show, that the bogolon-pair-mediated electron pairing mechanism is stronger than phonon-mediated and single bogolon-mediated ones. We develop a microscopic theory of bogolon-pair-mediated superconductivity, based on the Schrieffer-Wolff transformation and the Gor'kov's equations, study the temperature dependence of the superconducting gap and estimate the critical temperature of superconducting transition for various concentrations of the electron gas and the condensate densities.

arXiv commentManuscript: 6 pages, 4 figures

References in corpus (24)

• Magic-angle graphene superlattices: a new platform for unconventional superconductivity
• Evidence for superconductivity above 260 K in lanthanum superhydride at megabar pressures
• Superconductivity in single-layer films of FeSe with a transition temperature above 100 K
• Superconductivity protected by spin-valley locking in ion-gated MoS2
• Evidence of high-temperature exciton condensation in 2D atomic double layers
• High-temperature superfluidity with indirect excitons in van der Waals heterostructures
• Direct imaging of the band profile in single layer $Mo{S}_2$ on graphite: quasiparticle energy gap, metallic edge states and edge band bending
• Room-temperature superfluidity in a polariton condensate
• Cavity-mediated electron-photon superconductivity
• Superconductor-semiconductor hybrid cavity quantum electrodynamics
• Exciton-polariton mediated superconductivity
• Damping in dilute Bose gases: a mean-field approach
• Superconductivity and other phase transitions in a hybrid Bose-Fermi mixture formed by a polariton condensate and an electron system in two dimensions
• Two-dimensional Superconductors with Atomic-scale Thicknesses
• High-temperature superfuidity of the two-component Bose gas in a TMDC bilayer
• Exciton condensate in bilayer transition metal dichalcogenides: strong coupling regime
• Possibility of superconductivity due to electron-phonon interaction in graphene
• Exciton supersolidity in hybrid Bose-Fermi systems
• Damping in 2D and 3D dilute Bose gases
• The interplay of phonon and exciton-mediated superconductivity in hybrid semiconductor-superconductor structures
• Optical Transistor for an Amplification of Radiation in a Broadband THz Domain
• Magnetoplasmon Fano resonance in Bose-Fermi mixtures
• Unconventional Bloch-Grüneisen scattering in hybrid Bose-Fermi systems
• Bogolon-mediated electron capture by impurities in hybrid Bose-Fermi systems

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• Photoinduced Anomalous Supercurrent Hall Effect
• Strong-coupling theory of condensate-mediated superconductivity in 2D materials
• Coupled system of electrons and exciton-polaritons: Screening, dynamical effects, and superconductivity
• Superfluid drag between excitonic polaritons and superconducting electron gas
• The exciton-polariton properties of hexagonal BN based microcavity and their potential applications in BEC and superconductivity
• Elementary excitations in the hybrid Bose-Fermi system induced by circularly polarized light in a two-dimensional gas of charge carriers with different masses
• Bogolon-mediated electromagnetic wave absorption in multicomponent Bose-Einstein condensates