Interlayer tunneling in counterflow experiments on the excitonic condensate in quantum Hall bilayers

Abstract

The effect of tunneling on the transport properties of} quantum Hall double layers in the regime of the excitonic condensate at total filling factor one is studied in counterflow experiments. If the tunnel current $I$ is smaller than a critical $I_C$, tunneling is large and is effectively shorting the two layers. For $I>I_C$ tunneling becomes negligible. Surprisingly, the transition between the two tunneling regimes has only a minor impact on the features of the filling-factor one state as observed in magneto-transport, but at currents exceeding $I_C$ the resistance along the layers increases rapidly.

References in corpus (7)

• Critical tunneling currents in the regime of bilayer excitons
• Dominant parameters for the critical tunneling current in bilayer exciton condensates
• Coherent Tunneling in Exciton Condensates of Bilayer Quantum Hall Systems
• Blockade and Counterflow Supercurrent in exciton-condensate Josephson junctions
• Area dependence of interlayer tunneling in strongly correlated bilayer 2D electron systems at ${\nu }_T=1$
• Vortex states of a disordered quantum Hall bilayer
• Theory of Activated Transport in Bilayer Quantum Hall Systems

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