Coulomb drag in graphene near the Dirac point

Abstract

We study Coulomb drag in double-layer graphene near the Dirac point. A particular emphasis is put on the case of clean graphene, with transport properties dominated by the electron-electron interaction. Using the quantum kinetic equation framework, we show that the drag becomes $T$-independent in the clean limit, $T\tau \to \infty$, where $T$ is temperature and $1/\tau$ impurity scattering rate. For stronger disorder (or lower temperature), $T\tau \ll 1/{\alpha }^2$, where $\alpha$ is the interaction strength, the kinetic equation agrees with the leading-order (${\alpha }^2$) perturbative result. At still lower temperatures, $T\tau \ll 1$ (diffusive regime) this contribution gets suppressed, while the next-order (${\alpha }^3$) contribution becomes important; it yields a peak centered at the Dirac point with a magnitude that grows with lowering $T\tau$.

3 figures, with expanded Supplemental Material attached as an appendix

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Cited by in corpus (45)

• Strong Coulomb drag and broken symmetry in double-layer graphene
• Excitonic superfluid phase in Double Bilayer Graphene
• Coulomb drag
• Non-equilibrium dynamics of photo-excited electrons in graphene: collinear scattering, Auger processes, and the impact of screening
• Hydrodynamics in graphene: Linear-response transport
• Hydrodynamic approach to electronic transport in graphene
• Collision-dominated nonlinear hydrodynamics in graphene
• Negative Coulomb Drag in Double Bilayer Graphene
• Hydrodynamic approach to two-dimensional electron systems
• Giant magneto-drag in graphene at charge neutrality
• Hydrodynamic electron transport and nonlinear waves in graphene
• Hydrodynamic collective modes in graphene
• Linear magnetoresistance in compensated graphene bilayer
• Breakdown of the Wiedemann-Franz law in AB-stacked bilayer graphene
• Theory of Coulomb Drag in Spatially Inhomogeneous Materials
• Hydrodynamic Coulomb drag of strongly correlated electron liquids
• Interaction and disorder effects in 3D topological insulator thin films
• Hydrodynamic approach to electronic transport in graphene: energy relaxation
• Strong magnetoresistance of disordered graphene
• S-shaped current-voltage characteristics of n+-i-n-n+ graphene field-effect transistors due the Coulomb drag of quasi-equilibrium electrons by ballistic electrons
• Quantum magnetooscillations in the ac conductivity of disordered graphene
• Relaxation of optically excited carriers in graphene: Anomalous diffusion and Lévy flights
• Anti-Poiseuille flow in neutral graphene
• Coulomb electron drag mechanism of terahertz plasma instability in n+-i-n-n+ graphene FETs with ballistic injection
• Energy drag in particle-hole symmetric systems as a quantum quench
• Anomalous Hall Coulomb drag of massive Dirac fermions
• A new coupling mechanism between two graphene electron waveguides for ultrafast switching
• Plasmonic Tuning of the Near Field Heat Transfer in Double Layer Graphene
• Effect of Coulomb carrier drag and terahertz plasma instability in p+-p-i-n-n+ graphene tunneling transistor structures
• First-principles quantum corrections for carrier correlations in double-layer two-dimensional heterostructures
• Interlayer electron-hole friction in tunable twisted bilayer graphene semimetal
• Coulomb drag in topological insulator films
• Demystifying the Holographic Mystique
• Transport signatures of plasmon fluctuations in electron hydrodynamics
• Ballistic injection terahertz plasma instability in graphene n+-i-n-n+ field-effect transistors and lateral diodes
• Resonant plasmonic terahertz detection in gated graphene p-i-n field-effect structures enabled by the Zener-Klein tunneling nonlinearity
• Coulomb drag in topological materials
• Quantum corrections to transport in graphene: a trajectory-based semiclassical analysis
• Transit-time resonances enabling amplification and generation of terahertz radiation in periodic graphene p-i-n structures with the Zener-Klein interband tunneling
• Coulomb drag in graphene/hBN/graphene moiré heterostructures
• Coulomb drag between two graphene layers at different temperatures
• Magneto-Coulomb Drag and Hall Drag in Double-Layer Dirac Systems
• Reduced QED with few planes and fermion gap generation
• Dragging of electric current by hydrodynamic flow at charge neutrality
• Anomalous drag in electron-hole condensates with granulated order