Exciton condensate in bilayer transition metal dichalcogenides: strong coupling regime
arXiv:1707.07064 · doi:10.1103/PhysRevB.96.174504
Abstract
Exciton condensation in an electron-hole bilayer system of monolayer transition metal dichalcogenides is analyzed at three different levels of theory to account for screening and quasiparticle renormalization. The large effective masses of the transition metal dichalcogenides place them in a strong coupling regime. In this regime, mean field (MF) theory with either an unscreened or screened interlayer interaction predicts a room temperature condensate. Interlayer and intralayer interactions renormalize the quasiparticle dispersion, and this effect is included in a GW approximation. The renormalization reverses the trends predicted from the unscreened or screened MF theories. In the strong coupling regime, intralayer interactions have a large impact on the magnitude of the order parameter and its functional dependencies on effective mass and carrier density.
arXiv comment7 pages, 7 figures
References in corpus (24)
- Evolution of Electronic Structure in Atomically Thin Sheets of WS2 and WSe2
- Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2
- k.p theory for two-dimensional transition metal dichalcogenide semiconductors
- High-temperature superfluidity with indirect excitons in van der Waals heterostructures
- Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
- Strong Coulomb drag and broken symmetry in double-layer graphene
- Room-Temperature Superfluidity in Graphene Bilayers
- Counterflow measurements in strongly correlated GaAs hole bilayers: evidence for electron-hole pairing
- Vanishing Hall Resistance at High Magnetic Field in a Double Layer Two-Dimensional Electron System
- High Temperature Superfluidity in Double Bilayer Graphene
- Excitonic condensation in a symmetric electron-hole bilayer
- Excitonic condensation of massless fermions in graphene bilayers
- Electron screening and excitonic condensation in double-layer graphene systems
- Theory of Two-Dimensional Spatially Indirect Equilibrium Exciton Condensates
- Cooper pairing of electrons and holes in graphene bilayer: Correlation effects
- Interaction-Enhanced Coherence Between Two-Dimensional Dirac Layers
- Control of excitons in multi-layer van der Waals heterostructures
- Excitonic Superfluidity and Screening in Electron-Hole Bilayer Systems
- Enhancement of electron-hole superfluidity in double few-layer graphene
- Spatially-indirect Exciton Condensate Phases in Double Bilayer Graphene
- Interlayer excitonic superfluidity in graphene
- The Influence of Remote Bands on Exciton Condensation in Double-Layer Graphene
- Ultrarelativistic electron-hole pairing in graphene bilayer
- Anisotropic superfluidity of two-dimensional excitons in a periodic potential
Cited by in corpus (29)
- Evidence of high-temperature exciton condensation in 2D atomic double layers
- Strong coupling between excitons and magnetic dipole quasi-bound states in the continuum in WS-TiO hybrid metasurfaces
- Coupling of deterministically activated quantum emitters in hexagonal boron nitride to plasmonic surface lattice resonances
- Heterobilayers of 2D materials as a platform for excitonic superfluidity
- Quantum-metric-enabled exciton condensate in double twisted bilayer graphene
- Leaky exciton condensates in transition metal dichalcogenide moiré bilayers
- Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
- Geometric Stiffness in Interlayer Exciton Condensates
- Intricate modulation of interlayer coupling at GO/MoSe2 interface: application in time-dependent optics and device transport
- Bose-Einstein condensate-mediated superconductivity in graphene
- Theory of BCS-like bogolon-mediated superconductivity in transition metal dichalcogenides
- Beginnings of Exciton Condensation in Coronene Analog of Graphene Double Layer
- Exciton solid in bilayer two dimensional electron-hole systems
- Twisting enabled charge transfer excitons in epitaxially fused quantum dot molecules
- Entangled phase of simultaneous fermion and exciton condensations realized
- Strong-coupling theory of condensate-mediated superconductivity in 2D materials
- Searching for Unconventional Superfluid in Excitons of Monolayer Semiconductors
- Metal-insulator transitions in bilayer electron-hole systems in transition metal dicalcogenides
- Effects of intra-layer correlations on electron-hole double-layer superfluidity
- Stationary waves in a superfluid gas of electron-hole pairs in bilayers
- Interface engineering of van der Waals heterostructures towards energy-efficient quantum devices operating at high temperatures
- Anderson-Bogoliubov and Carlson-Goldman modes in counterflow superconductors: Case study of a double monolayer graphene
- Exciton Superfluidity in 2D Heterostructures from First Principles: The importance of material specific screening
- Longitudinal Josephson effect in systems with pairing of spatially separated electrons and holes
- Topological fluctuating electron-hole Cooper pairs in graphene-GaAs heterostructures
- Topological hybrid electron-hole Cooper pairing
- Beyond Random Phase Approximation in electron-hole bilayer superfluidity
- Anomalous drag in electron-hole condensates with granulated order
- Holographic model of exciton condensation in double monolayer Dirac semimetal