Room-temperature superfluidity in graphene bilayers

2008/02/29 by Hongki Min, Rafi Bistritzer, Jung-Jung Su +1 · 18 citations
Physics and Astronomy · #Condensation #Condensed matter physics #Gapless playback #Graphene #Materials science #Nanotechnology #Optoelectronics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Semiconductor #Strong Light-Matter Interactions #Superfluidity #Thermal conduction #Thermodynamics #Valence (chemistry) #cond-mat.mes-hall #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.78.121401

published as Phys. Rev. B 78, 121401(R) (2008) · 5 pages, 3 figures; updated discussion and references; to appear in PRB Rapid Comm

arxiv created 2008/08/19 · openalex publication_date 2008/09/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Because graphene is an atomically two-dimensional gapless semiconductor with nearly identical conduction and valence bands, graphene-based bilayers are attractive candidates for high-temperature electron-hole pair condensation. We present estimates which suggest that the Kosterlitz-Thouless temperatures of these two-dimensional counterflow superfluids can approach room temperature.

Citations

• Evidence for a Finite-Temperature Phase Transition in a Bilayer Quantum Hall System
• Bose–Einstein condensation of exciton polaritons
• Bose–Einstein condensation of excitons in bilayer electron systems
• Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases

Cited by

• Density of states in the bilayer graphene with the excitonic pairing interaction
• Dynamical Screening and Excitonic Instability in Bilayer Graphene
• Bilayer Excitons in Two-Dimensional Nanostructures for Greatly Enhanced Thermoelectric Efficiency
• Blockade and Counterflow Supercurrent in Exciton-Condensate Josephson Junctions
• Influence of Disorder on Electron-Hole Pair Condensation in Graphene Bilayers
• Pump-driven normal-to-excitonic insulator transition: Josephson oscillations and signatures of BEC-BCS crossover in time-resolved ARPES
• Topological excitonic superfluids in three dimensions
• Pseudospin transfer torques in semiconductor electron bilayers
• Strong Coulomb drag and broken symmetry in double-layer graphene
• Hunting for Monolayer Boron Nitride: Optical and Raman Signatures
• Magnetoexcitons and optical absorption of bilayer-structured topological insulators
• High-temperature superfluidity with indirect excitons in van der Waals heterostructures
• Carbon nanotubes as excitonic insulators
• External gates and transport in biased bilayer graphene
• Large gap electron-hole superfluidity and shape resonances in coupled graphene nanoribbons
• Bielectron vortices in two-dimensional Dirac semimetals
• Spectral properties of excitons in the bilayer graphene
• Pseudospin order in monolayer, bilayer and double-layer graphene

Related

• Anomalous Drag in Double Bilayer Graphene Quantum-Hall Superfluids
• Excitonic superfluid phase in Double Bilayer Graphene
• Superfluidity of dipole excitons in two layers of gapped graphene
• Anomalous Exciton Condensation in Graphene Bilayers
• Effect of Inversion Asymmetry on Bilayer Graphene's Superconducting and Exciton Condensates