Anomalous Coulomb drag in electron-hole bilayers

Abstract

We report Coulomb drag measurements on GaAs-AlGaAs electron-hole bilayers. The two layers are separated by a 10 or 25nm barrier. Below T$\approx$1K we find two features that a Fermi-liquid picture cannot explain. First, the drag on the hole layer shows an upturn, which may be followed by a downturn. Second, the effect is either absent or much weaker in the electron layer, even though the measurements are within the linear response regime. Correlated phases have been anticipated in these, but surprisingly, the experimental results appear to contradict Onsager's reciprocity theorem.

4 pages, 5 EPS figures (replaced with published version)

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Cited by in corpus (84)

• Strong Coulomb drag and broken symmetry in double-layer graphene
• Coulomb drag
• Exotic plasmon modes of double layer graphene
• High Temperature Superfluidity in Double Bilayer Graphene
• Coulomb Drag of Massless Fermions in Graphene
• Coulomb Drag in the Exciton Regime in Electron-Hole Bilayers
• Electron-hole pairing in graphene-GaAs heterostructures
• Highly polarized Fermi gases in two dimensions
• Giant Frictional Drag in Double Bilayer Graphene Heterostructures
• Plasmons and Coulomb drag in Dirac/Schroedinger hybrid electron systems
• Coulomb Drag and Magnetotransport in Graphene Double Layers
• Excitonic Superfluidity and Screening in Electron-Hole Bilayer Systems
• Theory of Coulomb drag for massless Dirac fermions
• Evidence from quantum Monte Carlo of large gap superfluidity and BCS-BEC crossover in double electron-hole layers
• Quantized Vortices and Four-Component Superfluidity of Semiconductor Excitons
• Excitonic condensation in a double-layer graphene system
• Enhancement of electron-hole superfluidity in double few-layer graphene
• Spin drag in an ultracold Fermi gas on the verge of a ferromagnetic instability
• Probing the topological exciton condensate via Coulomb drag
• Anomalous Quantum Oscillations of Interacting Electron-hole Gases in Inverted Type-II InAs/GaSb Quantum Wells
• Blockade and Counterflow Supercurrent in exciton-condensate Josephson junctions
• Density imbalance effect on the Coulomb drag upturn in an electron-hole bialyer
• Experimental conditions for observation of electron-hole superfluidity in GaAs heterostructures
• Kinetics of Exciton Emission Patterns and Carrier Transport
• High temperature electron-hole superfluidity with strong anisotropic gaps in double phosphorene monolayers
• Measurement of electron-hole friction in an n-doped GaAs/AlGaAs quantum well using optical transient grating spectroscopy
• Possible effect of collective modes in zero magnetic field transport in an electron-hole bilayer
• Supersolidity in electron-hole bilayers with a large density imbalance
• Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
• Josephson current in a four terminal superconductor - exciton condensate - superconductor system
• Anomalous Coulomb Drag between InAs Nanowire and Graphene Heterostructures
• Stability of Sarma phases in density imbalanced electron-hole bilayer systems
• Switching between attractive and repulsive Coulomb-interaction-mediated drag in an ambipolar GaAs/AlGaAs bilayer device
• Extreme electron-hole drag and negative mobility in the Dirac plasma of graphene
• Anomalous Coulomb Drag in Electron-Hole Bilayers due to the Formation of Excitons
• Keldysh field theory of dynamical exciton condensation transitions in nonequilibrium electron-hole bilayers
• Spin transport in a unitary Fermi gas close to the BCS transition
• Extremely imbalanced two-dimensional electron-hole-photon systems
• Josephson-like tunnel resonance and large Coulomb drag in GaAs-based electron-hole bilayers
• Energy drag in particle-hole symmetric systems as a quantum quench
• Drag effect and Cooper electron-hole pair fluctuations in a topological insulator film
• A complete laboratory for transport studies of electron-hole interactions in GaAs/AlGaAs systems
• Spin-Orbit Interactions in Bilayer Exciton-Condensate Ferromagnets
• Coulomb drag in anisotropic systems: a theoretical study on a double-layer phosphorene
• Exciton solid in bilayer two dimensional electron-hole systems
• Multiband Mechanism for the Sign Reversal of Coulomb Drag Observed in Double Bilayer Graphene Heterostructures
• Quantum condensation in electron-hole bilayers with density imbalance
• Spin Drag in Ultracold Fermi Mixtures with Repulsive Interactions
• Photoemission spectra of massless Dirac fermions on the verge of exciton condensation
• Interacting drift-diffusion theory for photoexcited electron-hole gratings in semiconductor quantum wells
• Charge-density-wave states in double-layer graphene structures in a high magnetic field
• Using magnetic stripes to stabilize superfluidity in electron-hole double monolayer graphene
• Quadriexcitons and excitonic condensate in a symmetric electron-hole bilayer with valley degeneracy
• Fluctuational internal Josephson effect in topological insulator film
• Structure of exciton condensates in imbalanced electron-hole bilayers
• Interaction and coherence in 2D bilayers
• Coherent exciton transport in semiconductors
• Unified Boltzmann-transport theory for the drag resistivity close to a second-order phase transition
• Nanotransformation and current fluctuations in exciton condensate junctions
• Correlation functions in electron-electron and electron-hole double quantum wells: Temperature, density and barrier-width dependence
• Diamagnetism and suppression of screening as hallmarks of electron-hole pairing in a double layer graphene system
• Quantum solid phase and Coulomb drag in two-dimensional electron-electron bilayers of MoS2
• Metal-insulator transitions in bilayer electron-hole systems in transition metal dicalcogenides
• Electromagnetic properties of a double layer graphene system with electron-hole pairing
• Superfluidity of a rarefied gas of electron-hole pairs in a bilayer system
• Plasmon-mediated Coulomb drag between graphene waveguides
• Transport properties of an electron-hole bilayer/superconductor hybrid junction
• Interplay of interlayer pairing and many-body screening in a bilayer of dipolar fermions
• Superfluid drag between excitonic polaritons and superconducting electron gas
• The superfluid phase transition in two-dimensional excitonic systems
• Stationary waves in a superfluid gas of electron-hole pairs in bilayers
• Capacitance and conductance oscillations from electron tunneling into high energy levels of a quantum well in a p-i-n diode
• Helicoidal excitonic phase in an electron-hole double layer system
• 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
• Universality in Non-Equilibrium Quantum Systems
• Topological fluctuating electron-hole Cooper pairs in graphene-GaAs heterostructures
• 2D bilayer electron-hole superfluidity with unequal and anisotropic masses
• Longitudinal Josephson effect in systems with pairing of spatially separated electrons and holes
• Topological hybrid electron-hole Cooper pairing
• Quantum radiations from exciton condensate in Electron-Hole Bilayer Systems
• Beyond Random Phase Approximation in electron-hole bilayer superfluidity
• Anomalous drag in electron-hole condensates with granulated order
• Out-of-plane spin polarization of edge currents in Chern insulator with Rashba spin-orbit interaction