Exciton condensate at a total filling factor of 1 in Corbino 2D electron bilayers

Abstract

Magneto-transport and drag measurements on a quasi-Corbino 2D electron bilayer at the systems total filling factor 1 (v_tot=1) reveal a drag voltage that is equal in magnitude to the drive voltage as soon as the two layers begin to form the expected v_tot=1 exciton condensate. The identity of both voltages remains present even at elevated temperatures of 0.25 K. The conductance in the current carrying layer vanishes only in the limit of strong coupling between the two layers and at T->0 K which suggests the presence of an excitonic circular current.

References in corpus (1)

• Interlayer Transport in Bilayer Quantum Hall Systems

Cited by in corpus (5)

• Exciton Condensation and Perfect Coulomb Drag
• Anomalous Coulomb drag in electron-hole bilayers
• Critical tunneling currents in the regime of bilayer excitons
• Dominant parameters for the critical tunneling current in bilayer exciton condensates
• Drag effects in the system of electrons and microcavity polaritons